3000 Staples: This staple gun includes D-type, U-type, and T-type staples (D-type 4-14mm, U-type 10-12mm, T-type 10-14mm), 1000 pieces of each. Total 3000 pieces to meet your different renovation needs. Sturdy and Durable: With a large 5.86mm steel fixed column, high-strength stainless steel body, with surface treatment, durable, not prone to damage or rust. Power Adjustment: Freely adjust the power to suit the thickness of the material used with the adjustment knob of the electric staple gun, which will facilitate your decoration work. Easy to Use: Thanks to its ergonomic design, this 3-in-1 staple gun can be used without fatigue. The handle is more comfortable to use thanks to a rubber sleeve that reduces friction.