<b>Description</b><br/><br/>This item is manufactured with premium aluminum alloy for durable and long lasting use. The center distance between two holes is 170mm. Suitable for road bike, mountain bike, folding bike, fixed gear bicycle, etc. Great bike accessory that can provide you help in most situation. <br/><br/><b>Feature</b><br/><br/>- Color: Black.<br/>- Material: Aluminum alloy.<br/>- Size: About 21 x 2 x 1cm/8.3 x 0.8 x 0.4inch(LxWxH).<br/><br/><b>Package Including</b><br/>1 x Allow Low Profile Crank Arm Left 170mm (Black)