【Material】- The material of mask ear protectors buckle is premium integrated silicone, soft and anti-slip. | 【Adjustable】- Three level of girth ensures the mask tightened, suits many people, including kids and adults. | 【Relieves Ear Pain】- The ear protectors buckle is compatible with most ear cups on the market and relieves the ears of pressure and fatigue. | 【Easy to Use】- After wearing the mask, pull one of mask strap hook the extender gadget, then finish the other side. | 【Package Include】- Four pcs mask ear hooks with black colors .