About this item EASILY INSTALL & TAKE OFF: The special clip design of the earhook connection allows you to install or take off the earhook in less than 1 second, providing more convenience than traditional installation and disassembly methods. KEEP SECURELY: Upgraded ear hooks will buckle the ear inward, keeping your earbuds securely in your ears and preventing them from falling out during running, jogging, cycling, or other exercises. COMFORTABLE FIT: Made of advanced Thermoplastic polyurethane (TPU) for long-lasting comfort, you may forget you are even wearing them. COMPATIBLE WITH: Ear hooks are compatible with various models of earbuds, ensuring a snug fit for many users. 2 Pairs: Comes with 2 pairs of ear hooks, one pair for use and another for backup. Dimensions: 3.31 x 2.76 x 0.67 inches.