This Tube Strap is an optional tubing management accessory designed for use with F&P Evora CPAP Masks.The tube strap is ideal if you prefer to have your Evora mask tube over your head. It attaches to the gray adjustable head strap on the top.The tube strap attaches the short tube on top of the Evora headgear in order to channel the hose over the head instead of it hanging down from the mask. Does not include other Evora Nasal Mask parts.the new minimal nasal CPAP mask from Fisher & Paykel Healthcare. Includes the Fisher & Paykel Tube Strap, an optional accessory made for the Evora Nasal Mask.