enamel cock belt and shorts

A thick and glossy enamel cloth.
The length 7.5 centimeter inside diameter is 4.5 centimeters.
It can be controlled, so even a dramatically thick person is OK with string.
The string has been made long, so it's possible to tie the root of a ball by excess string.

KH302 low-rise thin cloth shorts

 

KH258 enamel cock belt