Production: 【Function】:Without damaging the shaft, quickly and safely remove the hub assembly 【Easy to Operate】:Mounts to studs using supplied flange nuts,Use with 5 lbs hammer to knock frozen hubs out of axles, saved alot of time and energy. 【Material】:Made of high-quality high-strength steel, and the surface is treated with black anodic oxidation, which is anti-corrosion, anti-impact, strong and durable. The bottom is made of high-quality 3/4" steel back plate and reinforced percussion plate, long service life Application: .