This bottle holder rack mount is solid and durable, mounts to 30.9mm or 31.6mm seat post or 31.8mm handlebars via hinged mounting bracket.

Features:
Made of AL 7075 CNC, good finish and solid, lightweight and durable.
Mounts to 30.9mm or 31.6mm seat post or 31.8mm handlebars via hinged mounting bracket.
Bracket turns 90 degrees to suit mounting position.
Complete with bolts.

Specifications:
Material: Aluminum alloy 7075 CNC
Color: Black / Blue / Red / Titanium / Golden (optional)
Size: 7.9 * 7 * 1.5cm / 3.1 * 2.8 * 0.6in
Weight: 43g / 1.52oz
Package size: 9.5 * 8 * 1.5cm / 3.7 * 3.1 * 0.6in
Package weight: 46g / 1.64oz

Package List:
1 * Water Bottle Holder Rack Mount

Note:
Item color displayed in photos may be showing slight difference on your computer monitor since monitors are not calibrated same.