Salter Labs® Oxygen Tubing 50 Foot Length Tubing (588275_CS) 20/CSOxygen supply tubing cannot be crushed, providing security of uninterrupted oxygen flow Remains straight when uncoiled decreasing pull on cannula, allowing for greater comfort and ease of movement and reduces incidence of tripping over tubing Innovative connector design has ribbed end piece with rounded, tapered edge Designed with Ribbed Body to permit easy gripping when making connections