Kink Lab Buckling Cock Ring and Chain Leash Set. Keep your captive in line by chaining up his genitals with this special cockring and chain leash set. The buckle-closure leather cockring fits snugly around his shaft and testicles, while the leather-handle chain leash connects easily to a dee ring on the front. Use it to tether your slave to a bed or chair, or to lead him around with his undivided attention.