Kangaro Staplers HD-23L17 Heavy Duty stapler, Stapling up to 140 sheets: Sturdy metal construction that can be used in the jam claso Adjustable Paper GuideAnti-slip base; Rear CargoRotating anvil for different sizes of staples and staple use: ~ 23/6 23/17Load Capacity: 200 Staples; Staple Capacity: 140 sheetsReduction of force