Brand new. Oumers Bicycle Crank Arm, Bike Crank Lest Arm with Bicycle Crank Puller Crank Arm Left Available in Diamond Hole 170mm Bike Crank Ram Replacement for Mountain Bike Road Bike Material: The bike rotating crank made of premium aluminium alloy, sturdy and durable,High strength, high hardness, deformation resistance, durable for long time use. Size: Hole spacing length:170mm(Please make sure it is the same as your original); total length:207mm. Universal bike crank puller: Design to remove or install square taper crank, it easy to use and is ideal for any home bike mechanic.