Bike Bottle Cage Mount Holder Portable Bluetooth Speaker Mount Fixed Strap Cup Holder Made of high quality material, durable and practical to use It can quickly attaches Bluetooth speakers / water bottle to any rail on the golf cart, bike, stroller, walking cart, trolley, beach umbrella, electric scooter, etc. The mount strap can also use to hold milk bottle, water bottle, drinks, juice and so on Upgraded hook and loop fasteners strap, non-slip material There's no tool need to install it. You can install and remove it anytime, anywhere Material: iron + elastic magic tape strap Package included: 1 x Bike Mount Strap Other items not include