Cowhide leather t-style cock and ball divider that is adjustable with snaps. Never fear hazardous materials again! If you`re sensitive to nickel, you know how the threat of a bad reaction can put a damper on even the sexiest action. That`s why Spartacus developed products that are not only allergen free — they`re worry free! We recommend wearing cock rings no longer than 30 minutes at a time.