The hook and loop are made of nylon, which is highly elastic, durable, and does not cause static electricity. They can also be washed and reused multiple times. Backing material: plastic film, easy to peel off, saving you time Stronger and longer-lasting adhesive, these pieces are perfect for smooth surfaces Add them to your arts and crafts supplies. Ideal for school, special education projects, home organization, office, etc. These hook and loop fasteners can be attached to most things, including laminated paper, fabric, craft sticks, adapted books, and so on. Feature Convenient to Use: Easy to peel off the film and attach it. Strong and Durable: Made of high-quality nylon and polyester, it can support much longer. Reusable: They are reusable, practical, and environmentally friendly, and will not leave any residue or damage to surfaces. Super Sticky: Powerful adhesiveness helps stick items firmly, making items stick stronger. Suitable Surfaces: Smooth surface such as walls, plastics, glasses, wood, and metals. Enough to Use: Contains 200 hooks and 200 loops, they can meet all your daily needs. Specification Material: Polyester and Nylon Type: Self-adhesive Dot Color: White Diameter: 10 mm / 0.39 " Quantity: 200 pairs Package Content 200 pairs x 10 mm / 0.39 "Round Self-adhesive Velcro