Specifacations:
Material: Aluminum alloy
Color: Black
Used to prevent the chain from falling off and reduce the tooth feel
Specification:

Features:
The floating pulley and spring adjustment can achieve perfect chain tension.
This bike chain tensioner is lightweight and easy to install.
Made of high-quality aluminum alloy, this bicycle chain tensioner is durable.
Suitable for people who like cycling.

Packaged Include:
1pc Bike Chain Tensioner

Note:
Item color displayed in photos may be showing slightly different on your computer monitor since monitors.
The weight maybe different as different branch of production, so just for reference.
Please make sure you don't mind these before order, thank for your understanding!