Features:

1. Durable Material: aluminum alloy, durable, corrosion-resistant, and high strength.
2. Unilateral and bilateral optional：Two bottles of water can be carried at one time(bilateral type)
3. Simple and convenient installation: can rotate 360°, adjust the angle as you like
4. Multi-location installation: Not only handlebars, seat bars and frame can be installed. Applicable diameter: 21-31.8mm
5. Bicycles and motorcycles can be installed