Silicone Head Strap Intended Use Head strap is designed to hold an anesthesia mask in position on a patient's face. Feature: reusable latex free and Phthalates free, bio-compatible Material: medical grade silicone Color: transparent Size: total length: 616mm Distance between main hole and small holes : 9mm Package: poly bag Shelf Life: 5 years Sterilization: autoclavable to 134℃, ETO gas and chemical detergent for medical device Country of Origin: China