3M Versaflo 38" Black Medium/Large Breathing Tube is made of lightweight polyurethane and is easy to wipe down. Breathing tube includes steel core coils for enhanced durability and helps to reduce the potential to catch on the wearer's surrounds and improves comfort. It comes with quick release swivel feature that connects quickly and enables one-handed connection. It includes steel core coils for enhanced durability and provides respiratory protection when used with 3M headgears.