Design of angled head and grooves: car axles have an angled head and 2 grooves, store graphite and reduce the contact area between the axle and the tire to minimize friction, no burrs and crimp marks, eliminating tedious work and increase the speed of the car Reliable material: car axles are made of stainless steel, durable and safe, can be applied for a long time; The polished axle is able to minimize friction and so that reaches faster speed Size details: the car axles are about 24 mm/ 0.94 inches, appropriate length of the axle reduces wobble in the hole, also reduces wheel shaking, so as to achieve faster speed Package includes: the package comes with 12 pieces axles and 4 pieces pearl cottons, enough quantity for your use and replacement, the pearl cotton aims to protect the product to the extent during transportation Applications: you can install angled axles on your car, and have a fast speed experience of the car; Warm note: the axles are suitable for most racing car, please read your rules of your car carefully as before purchasing ASIN B08M94P8KN Item Weight 0.634 ounces Manufacturer Hotop Item model number Hotop-Car Axles-UJ89 Package Dimensions 3.74 x 3.27 x 0.71 inches Manufacturer recommended age 12 months and up