I designed two types of penis extender. This is according to the average penis size.
After you have done 3d printing you need two M3x10 mm screw and one serum tire (6mm diameter and nearly 250 mm lenght)
Threeding.com is a marketplace for free and paid 3D printing models and files.
On our online platform individuals and businesses can buy, sell or just exchange freely 3D model suitable for 3D printing.