3in / 7.6cm STP Skin

3 in / 7.6 cm STP Skin

Comfortable and versatile, this 3 in (7.6 cm) silicone STP Skin is a thin, stretchy, hollow prosthetic with an opening at the tip for STP function. 

Our cup and tube STP fits down into the shaft and can be worn inside the Skin throughout the day, or removed at any time.  This versatile system allows you to customize the length and cup size of your STP while also allowing you to remove it and wear the Skin alone as a more comfortable and super compact packer.

The top and shaft are thin, stretchy, and collapsible.  The individual balls are solid and are connected at the top and in the middle with very thin and flexible silicone, allowing for more natural movement and comfort.

STP Skins can be worn with our Clip-In Waistband Harness or Slingshot Harness.  The Clip-In Waistband offers extreme comfort and lets the prosthetic hang down naturally between the legs, fully adjustable for packing.  The Slingshot holds the Skin close to the pubic area with elastic thigh straps, similar to a jockstrap, for a snug, compact fit without a waistband.

Measurements-

• Shaft length: 3 in (7.6 cm)
• Top width: 3.25 in (8 cm)
• Total length: 4.5 in (11 cm)
• Weight: 2.5 oz (80 g)

Originally available in 21 unpainted tones, STP Skins are now offered in 8 realistic shades with a range of finish options to suit your needs and budget.

About the Finish-

Each STP Skin is made from tinted platinum silicone and available in a range of finishes, from unpainted to fully hand-painted with optional freckles. Every piece begins with the same high-quality silicone base built for function and durability. The advanced finishes add translucent layers of tinted silicone that let light move through the surface, creating natural depth, tone variation, and lifelike dimension.

• Unpainted – Our classic standard with a soft powder finish. No additional tinting is applied, leaving a smooth, matte surface. This option offers the same function and durability as always, without increasing the cost.
• Realistic Tip – Thin, translucent layers of tinted silicone are hand-applied to the head only. The result is a vivid, lifelike finish that creates a real appearance while in use, without adding unnecessary expense.
• Realistic – Hand-painted layers of tinted silicone create subtle warm and cool tone mottling across the entire surface. The translucent coating adds natural luminosity and depth, giving the piece a smooth, lifelike finish.
• Realistic + Freckles – The same warmth and depth of the Realistic finish, with a few hand-placed freckles that bring life and individuality to each piece.

Paint Disclaimer-

This is not paint. The color is created with silicone-based pigments that cure permanently into the surface. It will not fade, peel, or rub off.

While I strive for realism and consistency, natural variation is part of the process. Small smudges, brush traces, or shifts in tone are to be expected—just like real skin. Each piece is individual, with its own character and imperfections that make it one of a kind.

International Classification-

This handcrafted prosthetic is made from cured platinum silicone (HS Code 3910.00.0000). It is designed for daily wear and stand-to-pee use as a personal-care item. It is not an adult novelty or erotic product. Packages are labeled discreetly with accurate material descriptions only. Buyers are responsible for confirming that silicone personal-care products are permitted in their region