Features: 1. Made of 100 Silicone, soft texture, tear resistance, excellent hand feeling, and has a certain radiation protection effect. 2. Natural and harmless, non-toxic, tasteless, non-corrosive, and environmentally friendly. 3. Waterproof, non-stick to dust, super wear-resistant and strong adhesion, effectively protect the casing from scratches and damage, and have a good buffering effect in collisions. 4. Compatible with H525 H520 H17 HZ720 HX550 etc. 5. Stabilizers to keep your earphones securely locked around your ear, for greater stability during exercise and other activities. Specification: 100 and super high quality. Item Name: Earhook Material: Silicone Size: about 4.5*1.5cm Color: Transparent, Black Package Includes: 1 Pcs Earhook. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2. Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.