STUDCOLLAR-FLEX. Black neoprene soft solid rubber sponge cord that is 5mm in diameter and 275mm long with two GOLD alloy rings. The cord will stretch to over 550mm and so it can be used for many uses ESPECIALLY when purchased with a second ring.

STUDCOLLAR-FLEX. Black neoprene soft solid rubber sponge cord that is 5mm in diameter and 275mm long with a GOLD alloy ring. The cord will stretch to over 550mm and so it can be used for many uses ESPECIALLY when purchased with a second ring.

STUDCOLLAR-FLEX. Black neoprene soft solid rubber sponge cord that is 5mm in diameter and 275mm long with two SILVER alloy rings. The cord will stretch to over 550mm and so it can be used for many uses ESPECIALLY when purchased with a second ring.

STUDCOLLAR-FLEX. Black neoprene soft solid rubber sponge cord that is 5mm in diameter and 275mm long with a SILVER alloy ring. The cord will stretch to over 550mm and so it can be used for many uses ESPECIALLY when purchased with a second ring.