Features: ✓Our adjustable ear strap hook are easy to use and fit well for heads of different sizes. ✓Our extension hook for ear protection is light, skin-friendly, easy to carry and wash. ✓Our ear strap extension hook can eliminate the pressure on the ears, protect your ears from scratching. ✓Our ear strap extender are adjustable, you can adjust the length of the rope as needed, suitable for most people. How to use: snap the adjustable ear extension straps onto your ear loops, and tighten it behind head with the fastener for a tighter seal and more security This adjustable ear extension strap also allows you to wear your coverings around your neck when it is not needed and easily pull it back in place, so you don't have to be afraid of losing or not knowing how to place it. Specification: Material:nylon and spandex Colour: black Package Include: 4 x ear hook strap buckle?Convenient - This lanyard also allows you to wear your face cover around your neck when it is not needed and easily pull it back in place. Keep your face clean and don't risk putting the face cover down or in your pocket to make the face cover dirty or losing. ?Widely Used - Regular ear extension strap will cause pain in the ears after a long time apply, this ear extension strap accessory is designed to solve the discomfort of wearing, suitable for daily use at home or work, especially practical for doctors, nurses, patients, researchers and so on. ?High Quality - Our ear grips hook is made of sturdy nylon and spandex, flexible, reusable, soft, wear-resistant, not easy to break, sturdy, light and easy to carry. ?Adjustable - Our extension hook buckle is adjustable, you can adjust the length of the rope through the rubber buckle to improved fit which equates to better protection, suitable for children, adults, the aged. ?Design - The non-slip design keeps the face cover firmly in place and is more comfortable to wear. This headband is made of durable, flexible material that can be washed repeatedly.