Beautiful heavy duty high gloss PVC lined with a 5 mil. soft fabric lined neoprene that’s really comfortable and non-slipping, but these cuffs go further with a durable locking system! The set comes with two 3 inches wide buckle- adjust cuffs, one 3.5 inches double snap lock and two 2.375 inches stainless steel spring snaps for attaching elsewhere. Locks & keys included. Fits 6 inches to 11 inches ankle. Features highly polished stainless steel buckles and D rings. Vegan friendly, no animal products are used in the manufacture of these cuffs.