Material The extension hook is made of 100% PP resin. It is flexible, soft, comfortable, dustproof and reusable for a long time. Dimensions Ear hook measures 17 x 2 cm. It is easy to wear and remove, helping your family stay comfortable while remaining healthy. Adjustable fit The ear buckle offers four adjustment levels. You can adjust the length to match head size for maximum comfort. Suitable for children, men and women. Comfort and skin safety Made with silicone material, the mask hook is flexible, durable and comfortable to use. It does not scratch the skin or cause skin problems. Key benefits Reduces ear strain by allowing adjustable fit to suit different head sizes Secure and comfortable mask placement for daily wear Familyfriendly design suitable for all ages Durable, reusable materials designed for longterm use Use scenarios At home, school or the office: for extended wear periods to improve comfort and mask stability During travel, commuting, or sports: keeps the mask securely in place while you move For children and adults: adjustable sizing ensures a good fit for anyone in the family