Aluminum alloy frame and plastic back plate,lightweight and durable to use.
Adjustable design is compatible with different bottles.
Just turn the screw knob to adjust the size of diameter between 60mm to 82mm.( 3.1 to 3.5inch).
Fits for various types of bikes such as mountain bikes,road bikes,etc.
Easily hold your cycling accessories,like water bottles,tool bag,etc.
Material: Aluminum alloy + Plastic
Size: 170 * 60 mm / 6.7 * 3.1 in
Weight: approx. 50 g / 1.8 oz
1* Adjustable Bike Bottle Holder
NOTE: Please make sure that there are any screws(not included) on your bicycle frame that can be screwed down to install this water bottle shelf.