Model Number:Bicycle tensioner
Single speed converter chain tensioner,great for mountain terrain bicycle.
Floating pulley and spring adjust for perfect chain tension.
Light weight and easy to install.
Made of high grade aluminum alloy material,durable in use.
Size:20x7mm
Colour:Black
Material:aluminum alloy
Package Contents:
1x Bicycle tensioner
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

What's in the box
1x Bicycle tensioner