1、Suitable Tread: Bike hubs tube shaft nut is suitable for M12 X 1.5mm tread bicycle thru axle, which provide perfect fitment for you. 2、Perfect Replacement: Bicycle thru axle nut is a good replacement accessory for the old or damaged one, which bring you much convenience. 3、Easy Installation: Mountain bike tube shaft nut is easy to install, does not need any special tool, which allow you can repairing your bicycle at home. 4、Compact Size: A total of 1 bicycle hubs tube shaft nut, small in size and light in weight, which is easy for you to carry and convenient for transport. 5、Aluminum Alloy: Mountain bike thru axle nut made of high quality aluminum alloy, high strength and sturdy, which is durable for a long time use.