Features:Lightweight and durable, easy to install and easy to carry.Easy to replace and excellent material, it is an essential accessory for riding sports.Suitable for most bicycle installations. Compatible with a variety of water cups, water bottles and beverage bottles.Specifications:Material: Aluminum alloyColor: Black, Red, Gold, Blue, SilverProduct size: 77mm*53mm*20mm/3.03*2.09*0.79"Process: Surface anodizationInstallation diameter: 19-40mm/0.75-1.57"