Material & FeatureBearings are made of long-lasting steel, which can reduce rear wheel shake, abnormal noise and keep driving safty if you replace regularly.. Advantage Than Others JAVIK use stainless steel cover as seal cover, not ordinary rubber cover. Built-in steel ball is G10Z4 and the workmanship of bearing use thick material. With 100% shake test and quality test, this bearings perfect replace for original factory part. etc.. PackageBearing(40x74x40) x 2; Ring, Retaining(7710440) x 2. Easy to install.
