【High performance】——Improved Seal For Dirt, Mud, Sand, And Water Protection. Ideal For Larger Tires, Heavier Payloads, And Rough Terrain.Longer Lifespan For Less Service Interruptions
【GCR15 Material】——The inner and outer ring balls are all made of GCR15 material
【After-sales Service】——We have exquisite craft, strict quality control along with excellent after-sales service. That is why our products is worthy of your purchase