Staples Compatibility: 13 gauge pneumatic staple gun is compatible with carton closing staple featuring a 1-3/8' (34.8 mm) crown and 5/8' & 3/4' (16 mm & 19 mm) leg lengths. Operating Pressure: 70-120 PSI, Air Inlet: 1/4' NPT. (Staples not included; please purchase separately) Depth-Adjustable: This pneumatic cardboard staple gun features 5/8' and 3/4' staple depth settings to handle single, double, and triple-layer cardboard. Get firm, reliable carton closing for your packaging needs High Loading Capacity: Our air carton closing stapler features a large-capacity loading magazine that can hold up to 100pcs staples, ensuring efficient work without frequent reloading. Aluminum alloy body provides high strength and durability Easy to Use: Enjoy greater control with the sequential firing mode, which prevents accidental firing for safer operation