Features: It is only suitable for small bearings with a light press Fit. E.G, like bicycle wheels, alternator, washing machine, electric motors etc. The tool is not an extractor, just an installer. Another tool is needed for bearing removal. This comprehensive set allows the user easier to insert wheel bearing race and seals, without damaging the race and axle housing. Anti-skid design of knurling, high friction, can improve work efficiency. Easy and simply to operate, just turn discs over to drive seals. Applicable to most standard bushing and wheel bearings. Includes 3 sizes of drivers/handles, small (4-1/2in long x 7/16in diameter), medium (5-1/2in long x 5/8in diameter) , and large (6-1/4in long x 7/8in diameter). Also possessed of 30 standard bushing drivers, accompany of a carrying case. Used in import and domestic car trucks tractors construction equipment electric motors and many other components having bushings. Specification:Condition: Brand newMaterial: Aluminum alloy Color: As picture shownSize(Small End Diameter x Large End Diameter): 10mm x 12mm, 12mm x 14mm, 14mm x 16mm, 15mm x 17mm, 16mm x 18mm, 18mm x 20mm, 20mm x 22mm, 22mm x 24mm, 25mm x 27mm, 28mm x 30mm, 30mm x 34mm, 32mm x 36mm, 35mm x 40mm, 38mm x 42mm Package List:17 x Tool