Wearing a mask for a long time will cause ear swelling and pain, our mask ear strap hook can help you solve this problem.Lightweight, sterile, environmentally friendly PP flexible material, easy to clean unlimited reuse non-allergic.Fits perfectly to your head, maximum comfort wraparound design, adjustable belt, tasteless, long life, etc. Eco-friendly PP flexible material.The use auxiliary device can delay the pressure, the rope fixed on the button of the auxiliary device, a few seconds to change the style of headgear relieve ear scar, release the pressure of the ear.Hook design, easy to adjust, the closure design has three sizes of the buckle that can be easily adjusted according to the size of the head.