【DURABLE CONSTRUCTION】-- Made of aluminum alloy, easy to dissipate heat, and it can provide the flexible rotation that make it durable.
【PROVIDE SMOOTH MOTION】-- With stepped spacer design and axle to fix the bearings better, which is helpful to reduce drag on your bearings and make the motion of bearing more smoothly, helping to prevent your bearings from collapsing.
【EASY TO MATCH】-- The recessed part of the spacer fits between the bearings, providing a seamless integration to the wheels, which makes it easy to support the wheels and bearings, and they are easy to match the skating male and female axles.
【COMPATIBILITY & SIZE】-- Axle diameter 6mm, long-sleeved bearing spacer inner diameter 6mm, suitable for most roller skates model using 6mm axles. Please check the specifications in the second product image to ensure it match your specifications. It is very important to measure your wheel bearing dimension to ensure a proper fit.