3 circles pierce in the front lengthwise belt. There is a plastic ring in the bottom.
A penis and a ball are put in a plastic ring. And a penis is put in 3 circles.
It's thick and tight by solid rubber.
It tightens tight.
Even 7 centimeters of belt (is elastic) from ring upper end.
It's 10 centimeters (It's elastic.) around the ring.
A plastic ring is made of the abs resin.
(5 centimeters of inside diameter. There is rubber, so about 4.5 centimeters of substance)