MAKE YOUR EARS MORE COMFORTABLE: Are your ears sore and red when you are working and studying with a mask for a time? The Mask Extension is great for you. Anti-Tightening Ear Protector Ear Strap Extender Buckle for Relieving Pressure and Pain. WHAT YOU : package includes 20 pieces of adjustable mask extension straps, sufficient for your daily wear and change, meanwhile, can relieve ear pain that caused by long-term wearing.Longest dimension 7.3 IN (18.5CM)The shortest size can be trimmed 5.1IN (13CM). ADJUSTABILITY: The mask extension strap can be adjusted to fit your head size. The length of the mask ear extender can be adjusted freely, suitable for all masks, suitable for men, women, the elderly, and children. It can effectively reduce the stress and relieve the pain caused by wearing a mask for a long time. Small and light, compatible with all hanging earmuffs on the market. SOFT AND COMFORTABLE: Made of polyester high-elastic fabric, safe, soft, comfortable, breathable and not , it fits the head perfectly, without any discomfort, and will not be caught in the hair; the soft material brings the ultimate comfort. Easy to clean for reuse. Colour: black Material: polyester Package Contents: 20 x Adjustable Face Mask Extender Strap Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.