Model A is the sturdiest STP from Number One Laboratory, with a large receptacle cup to pee through. It has a realistic head and hanging balls, and is compatible with the Slingshot Harness.
The surface has a soft powder finish, designed to help reduce chafing and tacky silicone feel.
Available in three colours and in an uncut or cut version.
Because it's a bit bigger with a larger receptacle cup, the Model A is extremely user-friendly. With its generous space to pee into, no flow-control is needed.
This STP fits best in pants with a longer zipper, and includes instructions on how to easily construct a harness from a store-bought pair of underwear.
Handmade in the USA, Number One Laboratory specializes in realistic 100% soft platinum-cured silicone STP packers that are easy to use and comfortable to wear.
Includes instructions on how to easily construct a harness from a store-bought pair of underwear.
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