This bike phone holder is made of high-quality aluminum alloy, providing a durable and long-lasting solution for mounting your phone on your bike. The quick attach and detach design makes it easy to use, and the 3D curved surface adapter ensures a secure fit for most phone cases. The holder is suitable for various types of bikes, including mountain bikes, road bikes, and electric bikes, as well as motorcycles and scooters. The package includes the phone holder, adhesive adapter, and elastic rubber rings.