Feature: 1. Using high‑quality silicone material, safe and durable, suitable for children and adults. 2. Non‑slip ear hooks, you never have to worry about glasses falling during strenuous exercise. 3. Special closed design, no extra tail, suitable for most people and keep your glasses. 4. The glasses fixing strap, waterproof and soft, will not put any pressure on your head and ears. 5. Suitable for sports, fitness, basketball, football, street dancing, water sports, etc. Specification: Item Type: Glasses Accessory Material: Silicone Weight: Approx. 19g / 0.7oz Application: Outdoor fishing, cycling, skiing, hiking, mountaineering, etc. Glasses Strap Length: Approx. 20-30cm / 7.9-11.8in Ear Hook Size: Approx. 3.6x1.4x0.35cm / 1.4x0.6x0.1in Package List: 2 x Glasses Strap 10 x Glasses Ear Hook Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.