Park Tool Suspension Bearing KitProfessional level kit for installing and removing bearings within bicycle suspension pivots 27 precision machined hard anodized guides enables compatibility with a wide range of bearing inner and outer diameters OD (mm): 16, 17, 19, 20. 6, 21, 22, 22. 3, 24, 26, 28, 28. 6, 30, 32 and 35mm ID (mm): 8. 5 9, 10, 12, 12. 7, 15, 17 and 20mm Magnetic back plate for easy configuration and assembly Organized in a convenient storage case