Features: Elastic, Durable, DIY Face Cover Accessories The elastic band is very easy to stretch, and within the allowable stretch elastic deformation range, it can easily restore the original length without deformation. They are made of high-quality polyester fiber, environmentally friendly, flexible, breathable, safe to the skin and durable. Elastic bands can be widely used in face cover, hair bands, underwear, pants, sportswear, waist belts, necklines and DIY crafts projects. Designed with adjustable buckle, easily to adjust and firmly hold the face cover, effectively reducing the pain and pressure in the ears when wearing the face cover for a long time. Specifications: Item Name: Elastic Bands Material: Polyester, Chinlon The length is approximately 3.95 inches (7.9 inches folded in half) Width: 5mm/0.20" (Approx.)