LiteTouch Ferrules are specifically designed to help prevent polymer tubing from twisting during the tightening process. IDEX ferrule has a durable stainless steel lock ring which ensures that the it stays in place on the tubing when the fitting system is loosened from its receiving port. It is designed for 1/16OD tubing and has a 1-32 Coned Thread Port Configuration. It comes in natural color and is also available in a 10 pack.