【3 in 1 Heavy Duty Stapler Kit】Ideal staples for repairing, decorating and fixing to meet your different stapling needs. Manual stapler made of high quality alloy steel, heat treatment, high hardness. 600 staples included. 【Depth Adjustment Knob】Use the adjustment knob clockwise downward, drill deeper; turn counter-clockwise to shallow punch; you can adjust the button to meet different materials and requirements. Easy to use, save time and effort. 【Quick and professional transparency】: Ergonomic clamping channel allows you to remove it easily. A non-slip rubber handle, which is designed according to the leverage principle, it allows you to save labor and quickly remove stuck nails in no time. 【Reliable quality and easy to use】 Die-cast aluminum construction and chrome steel construction provide long life. Using the principle of retraction, it does not require a power source. 【Various Applications for Staples】: U-shaped nails: widely used for fixing wires, packages, bindings ; door