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Triangular Calibration

The key is the uniquely designed shape of " folds "!

PEACH TOYS is made from male masturbator and uses the new material TB-Skin . The internal structure consists of a series of triangular folds with a calculated and unique shape and arrangement, divided into four blocks.
Product image of Triangular Calibration
Radar chart showing the capabilities of Triangular Calibration
Popularity 7
Feeling good 7
maintenance 8
durability 8
value for money 8

retailersotonaJP
sizeTotal length: approx. 6.10 in (15.5 cm) 0.97 lb (439 g)
ManufacturerPEACH TOYSpriceCheck current price at retailer
Year of release2026Material nameTB-Skin
TightnessSlightly loose stimulationSlightly strong
odorI don't mindOilinessusually
softnessVery soft Inside out○
kindsnon-through Masturbators ridge-type Masturbators Longitudinal folds

We ordered a new hole from male masturbator , a manufacturer that focuses on flooring PEACH TOYS . This hole has a new materialTB-SkinIt appears to be a meticulously crafted new product, utilizing various materials.

At first glance, the structure looks like the common longitudinal rib type , but it's actually arranged in a triangular nubs shape that I haven't seen much before, and the cross-sectional view also looks like it would stimulate the desire to insert it.

Developer's Voice

Reading the manufacturer's development story, it seems that male masturbator was conceived by a male masturbator enthusiast and created by a development producer with over 20 years of experience in the field, which shows that it was created with meticulous calculations.

While longitudinal rib type seems to have been exhausted, creating such a groundbreaking and unprecedented structure is no easy feat, and I think it's truly wonderful.

Therefore, I apologize if I end up giving a harsh score, but I will try to convey my honest opinion.

Cross-sectional view and internal structure of Triangular Calibration

  • Cross-sectional view of Triangular Calibration
  • The internal structure is characterized by four blocks of triangular folds . The inner diameter is quite wide, but because it is densely packed with triangular folds , it is not very loose.

    Normal 真空吸附特化型

  • Internal scope of Triangular Calibration
  • The three triangular folds pieces, which are initially closed, gradually open up as insertion occurs. This provides a firm, satisfying sensation of parting the tissue.

  • Let's take a look inside Triangular Calibration
  • The triangle folds is divided into blocks; even if you open the front, the back remains closed.

  • Image of Triangular Calibration turned upside down
  • I turned it over. The triangular folds has sharp corners and a very sharp design. fine ribs is engraved on it, and folds has a very defined edge.

  • Image of Triangular Calibration after cutting it open.
  • The triangle folds has alternating angles, making it prone to getting caught on corona of the glans at the joints.

  • Image of Triangular Calibration cut into quarters
  • I tried cutting it into quarters. It's ridge-type Masturbators , but if you get stuck on the triangular folds , there's also firm, bumpy sensation which is similar to nubs series.


Detailed images of Triangular Calibration

  • Image of the packaging when it arrived.
  • Image of the cardboard box after it has been opened.
  • This is a picture of the packaging for the mail-order item Daimao . It arrived via Sagawa Express.

  • Product packaging opened and images of contents
  • Image showing Triangular Calibration weighed to 0.97 lb (439 g).
  • It was in a plastic bag inside blister case container. The powder had absorbed oil and had white clumps on it, so I washed it thoroughly first. The weight is 0.97 lb (439 g).

  • Image of Triangular Calibration being held in hand.
  • Image of someone holding Triangular Calibration
  • It's a medium-sized model with a total length of 6.10 in (15.5 cm). The body has a simple shape with no protrusions or bumps.

  • Image showing the entrance to Triangular Calibration
  • Image of the bottom of Triangular Calibration
  • It has a simple, round opening. The opening diameter is a relatively large 0.67 in (1.7 cm).

  • Image showing Triangular Calibration inserted into dildo from the front.
  • A side view of Triangular Calibration inserted into dildo .
  • As you push aside the triangular folds as you move forward, you get a distinct feeling of pushing through the gaps during insertion.

  • This shows the process of removing air from inside Triangular Calibration
  • Image of vacuuming Triangular Calibration
  • When you apply vacuum, you can feel the suction.


How soft is Triangular Calibration ?


List of HOT POWERS material's hardness degree

When trying to convey the softness of a material, simply saying "soft" or "hard" is difficult because everyone has different standards. As an experimental attempt, I would like to use the power of materials categorized by degree, such as HOT POWERS , which are neatly separated from hardness , to convey the feeling.

I own all hardness grades except for Oni, so I'll try to explain that this male masturbator is similar to this hardness . Even with this method, the stickiness and properties differ depending on the material, and the feel when kneading changes slightly depending on the size of the material, so I can't say for sure if I can convey it accurately. I hope you will consider this as just one reference.

  • An image showing Triangular Calibration being compared to other products to check its hardness level.
  • soft and airy is soft but retains a slight elasticity, almost to the point of being fluffy and melt-in-your-mouth. In terms of hardness degree, it seemed to be about the same as -2. Therefore, hardness hardness is-2I think that's quite reasonable.

    Image showing the hardness degree of the material.

    *Material's hardness rating (personal opinion)


Size of Triangular Calibration

  • Image comparing the overall lengths of three sizes (L, M, S) of dildo
  • Image comparing the insertion lengths of three sizes: L, M, and S dildo )

In comparison to dildo , I stopped using dildo that I was previously using and tried the new 3 sizes.

The previous L size was impossibly large, so I figured it wouldn't be helpful to many people. Therefore, I've prepared three more realistic sizes.

Michinoku Dildo comes in various sizes, and even the M size can vary considerably. Please note that the sizes displayed here are not the actual product sizes, but rather our own arbitrary size translations. (For example, what we use for the S size is actually the old Michinoku M size.)

  • Image comparing dildo (using three sizes: L, M, and S) with Triangular Calibration
  • Compare the size of each dildo model.

  • Image comparing dildo (size S) with Triangular Calibration
  • With the S size, there's about 0.79 in (2 cm) of extra space at the back.

  • Image comparing dildo (size M) with Triangular Calibration
  • The M size is just barely enough to reach the back. It doesn't go all the way in, so I think I can still enjoy it.

  • Image comparing dildo (L size) with Triangular Calibration
  • The L size reaches all the way to the deepest part and pushes all the way through. Unfortunately, I think the insertion length will be insufficient for those who prefer the L size.


Administrator Review

The body is an unusual red color for an outer material, and has a soft feel with a slight elasticity, as indicated by the material soft and airy . This material is a new material from Peach Toys and is named TB-Skin .

There's a moderate amount of oil bleeding, but the smell isn't particularly noticeable. It's a standard size at 6.10 in (15.5 cm) and 0.97 lb (439 g), with a simple body design that's completely free of bumps or protrusions.

The opening is quite large, about 0.67 in (1.7 cm). From the looks of it, the opening seems unlikely to tear. Peach Toys' openings have been criticized for tearing easily, so it's clear that the manufacturer has put a lot of thought into the design, including material development.

I poured lotion firmly into the large opening and immediately tried inserting it. The softness and width of the material made for a very gentle opening, and it went in without any difficulty even when only semi-erect.

The inner diameter is wide, allowing you to push your way through the triangular folds into place. The triangular folds is divided into four blocks, and the angle of their arrangement changes slightly, so you really get the feeling of pushing them aside, or rather, pushing folds protrusions aside.

When you do 真空吸附特化型 , you get the feeling of parting triangular nubs with glans (penis) , mixed with the finer rough, scraping sensation sensation of folds . As you gradually speed up 真空吸附特化型 , you start to feel corona of the glans catching on the triangular protrusions of folds . The protrusions are sharp, so it's not unbearably painful, but you feel a slight prickly itch.

The vacuum function provided a decent amount of suction, which was nice, but I think it would have been even better if the triangular protrusions had a more varied texture.

Because the protrusions are finely divided, there are many places where it catches, and the pleasant feeling of licking the protrusions and rough, scraping sensation feel of folds are somewhat lost. The crunchy feeling that corona of the glans has when it catches feels a bit rough, so it might be a matter of personal preference.

As the name Triangular Calibration suggests, it provides a stimulating sensation, and its structure is interesting, but I found the protrusions to be a bit too prominent. Therefore, rather than being a fan of mellow , I think male masturbator is more suitable for those who prefer a certain level of stimulation.

The opening was very resistant to being turned inside out, making it easy to turn inside out without tearing at all, so in that respect, it was excellent.


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  • Package image 3

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