Our extension tubing lays flat on the floor so your foot doesn’t get caught under it. The material is stretchy, like rubber, and won’t yank your head around if it catches on something. It also resists getting twisted into loops that kink time after time. No more disconnecting the oxygen and unwinding the tubing. In cold temperatures the tubing doesn’t stiffen like regular types. Tubes come in 15, 25, 35, and 50 foot lengths. A male to male connector is provided to connect the cannula to the extension hose.