The shell is made of material,long service life Appearance on the principle of ergonomic design,easy operation reduce the labor intensity,improve production efficiency Widely used in shoe factory,leather,bags and other industries for anti-wrinkle finishing process Impact number:6000/min Work strike:2.2 mm Air inlet: 1/4inch Air consumption: 0./min Work pressure:0.6MPa Hammer diameter:30mm Hammer thickness:7mm Diameter:40mm Color: Silver Material: Aluminum Alloy Package Contents: 1 * Vertical pneumatic massage hammer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.