Kink Resistant Supply Tubing from Roscoe provides patients with high-quality performance and maximum safety. Designed for use with oxygen and oxygen therapy, the three-channel inner lumen design is kink- and crush-resistant, providing a steady and uninterrupted flow of oxygen for maximum safety. The 7' of tubing, when uncoiled, lies out straight, minimizing "torque" or pull on cannula and letting users have a little bit of mobility as the tubing tracks with them. This is 1 case of tubing and 50 sets come in each case. Universal connectors at each end come standard. Tubing is crush-resistant, ensuring a safe and uninterrupted flow of oxygen. Also available in green tint color for greater visual contrast and improved safety. Easy to clean, on a weekly basis place the tubing in a sink of warm, soapy water, rinse well and let air-dry out of direct sunlight. All Roscoe tubing is Latex-free.