About this item FIT: These ear hooks are designed specifically for the 2021 model of Studio Buds. Not compatible with other models. ANTI-SLIP: The ergonomic design of these ear hooks fits your ears securely, making them ideal for running, jogging, cycling, and other activities. COMFORTABLE TO WEAR: Crafted from premium silicone material, these ear hooks are ultra-lightweight, providing long-lasting comfort for your ears. EXTRA SILICONE POUCH: Ear hooks are not chargeable with the Studio Buds. Use the included pouch to store the ear hooks while charging your Studio Buds. Dimensions: 3.31 x 2.76 x 0.75 inches.