Description:Quality material: This bike crankset is made of quality aluminum alloy and steel, which is wear resistant, sturdy, and not easy to deform. It can be used repeatedly for a long timeBicycle replacement part: This bike chainring crank arm set is a great replacement part for repairing bicycles, suitable for most children's folding bikesEasy to install and use: This bicycle square taper crankset is easy to install without complicated steps. It features a hollow out design that makes it lightweight and flexible to useWide application: This 32T bike crank set is nice for children's bikes, folding bikes, etc., and also suitable for single speed and variable speed bicyclesPractical tool: These cycling accessories are practical tools for those who love cycling, bike maintenance, and care They make great giftsSpecification:Material: Aluminum Alloy and SteelSize Chart:Crank Length 12.7cm/5.00inchPackage Includes:1 Set BikeCranksetNote:Please allow slightly errors 1-2cm differences due to manual measurement.