[[High Quality Materials] This crank set is made of high-quality materials which is sturdy and durable. High strength high hardness not easy to deform. Comply with strict quality control standards reliable in use. This is LEFT Bicycle Crank Arm!!! [Easy to Install] Our bike crank sets are light in weight small in size and easy to install and use. Well made has good performance with higher work efficiency. [Crank are length] 170mm crank arm length without any overlap of crank arm and chain ring bolt. Fine polish and great paint colorfast and stylish. [Applicable] Our crank arm set is suitable for BMX Bike BMX Bike-Old School Cruiser Cyclotrons Bike Electric Bike Folding Bike Hybrid/Comfort Bike Mountain Bike. [Package Include] 1 x Bike crank arms. This bike crank arm adopts excellent manufacturing process with fine polish and great paint which has stable performance and stylish appearance and can add a unique look to your bicycle.]