Specifications: The item is suitable for use with adjustable wrenches, clockwise tightening, counterclockwise loosening. Made of high-strength chromium-molybdenum steel, it is vacuum quenched, nitriding processed, very hard. Adopted high-precision processing, it has better occlusion, and not easy to scratch. It can be used for the removal of threaded ring nut insert found in ratchet drive hubs. Item Name: Hub Removal Tool Material: Chromium-molybdenum Steel Features: Durable, Easy to Install, High Strength Size: 4.5cm x 2.1cm x 2.1cm/1.77" x 0.83" x 0.83" (Approx.) Package Includes: 1 x Hub Removal Tool