Easier to insert wheel bearing race and seals without damage to race and axle housing. Set includes nine disc sizes to fit most standard wheel bearings. Turn discs over to drive seals. Blow molded case for easy storage and transport. Set includes the following parts: . No. 1 - Size 1.565". No. 2 - Size 1.750". No. 3 - Size 1.965". No. 4 - Size 2.325". No. 5 - Size 2.470". No. 6 - Size 2.555". No. 7 - Size 2.830". No. 8 - Size 2.995". No. 9 - Size 3.180". No. 10 - drive handle with flange hex bolt.