This aluminum motorcycle phone holder features a vibration dampener to effectively filter high-frequency vibrations and protect your smartphone's camera. Made from durable PC and ALU materials, it is designed for quick mounting on handlebars. The phone holder is compatible with various types of bikes, including motorcycles, mountain bikes, and bicycles. It comes with an adapter and elastic rubber rings for secure installation. Please note that the adapter should be stuck to the center of the phone case, not directly on the phone.