Perfect for Kids: These kids' glasses straps are 8.46 inches long and highly elastic, stretching up to 15.7 inches. Suitable for glasses legs with a width of 8-16mm, they're perfect for children and toddlers, but also suitable for adults. If your glasses have thick legs, pull them through the strap. The strap is flexible; if it feels tight, stretch it first. Non-Slip: With an ergonomic design, these glasses straps are easy to wear and comfortable all day long. Keep your glasses in place, preventing slips and breaks. Soft Silicone Material: Our glasses straps are made of silicone, which is highly elastic, flexible, durable, adjustable, and comfortable to wear. Safe for the skin and difficult to break, they're perfect for everyday use and workouts. Mixed Colors: These kids' glasses straps and ear hooks come in 10 colors: red, orange, yellow, blue, brown, purple, pink, black, white, and dark blue. Colorful straps help your children wear glasses and make it fun to match different colors to their outfits. They make sweet gifts. Wide Use: These silicone glasses straps are suitable for anyone tired of constantly pushing up their glasses, especially great for indoor and outdoor sports activities like running, basketball, soccer games, riding, skiing, and so on.