[Reliable Design] The bike cup holder is secured to the front of the bike using three velcro fastening strips, resulting in a stable three-point design that keeps your water bottle stable on rough terrain. Bicycle water bottle holder with drawcord is designed it can be freely retracted to ensure that beverages do not spill. [DURABLE MATERIAL] Bike water bottle holder is made of tough Oxford cloth material. Lightweight and durable. The outer layer is tear-resistant and waterproof, and the inner layer is a thickened aluminum film with excellent insulating properties. Keep your mug at a good temperature even in winter. [Fitability] Our cup holder bike can easily fit 12oz-32oz water cups while following the correct installation method. We also have a mesh pocket on the side so you can carry small items like your phone, headphones, cards, keys and trinkets. [Wide Application]Universal Bicycle Cup Holder 3.3"W 6.5"H. 3 adjustable hook and loop straps make the mounting position very flexible. Not only for road bikes, mountain bikes, but also for electric scooters, electric bikes, folding bikes, kids bikes. Christmas gift. [Installation steps] The bicycle bottle cage is very easy to install, it is attached to the handlebar of the bicycle by a strap, no screws are required. Handle it with ease and no limits with our guide. Color: Black Material: Oxford cloth Package Contents: 2 * Water bottle bag is only the above package contents and does not include other products. Note: Light shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm.