Effectively prevent backflow of blood， so that prolonged erection!! 

This product is suitable for penile erection is longer than 9 cm of users. This product is made of stainless steel and leather production， by one large and one small two penis rings， and leather straps connected to a large ring diameter 5CM， small ring diameter 3CM. The small ring sets when used on erection penis， big collar roots in balls， effectively extending the erection time， increase male sexy. 

 

Male genital worship complex， even today will leave a deep mark in the minds of modern men and women. Both men and women， mostly glowing penis would be strong and with a kind of reverence and admiration of psychology. This product is a cross between commodity SM accessories and men between the root of worship， the use of the metal ring in turn put yet erect penis， then hand the penis erection (maximum ring used to trap the scrotum)， which can effectively prevent backflow of blood so that prolonged erection 

 

The following is a physical map