Specification: Material:stainless steel Colors:Silver Size: 5 sizes Include:1 pcs penis ring Package : Discreet package , protect your privacy Function: Carrying weight training on the penis, improving penile durability, treating symptoms of premature ejaculation, and improving the quality of sexual life Notice: Manual measurement and weighing, there are certain deviations, please choose the appropriate size to buy according to your actual situation, thank you!