We know the last thing you want to happen while working on a project is a frustrating staple jam that can mess everything up. In listening to your needs, we've designed this Spec Ops Heavy-Duty Plier Stapler, Top-Load Design with antijam technology that creates a reliable operation and rapid stapling that won't slow you down when stapling corrugated cartons, insulation wrap or cardboard. This fastener with durable, all-metal construction also features a top load design for fast and easy staple reloading when you run out. While this Spec Ops heavy duty plier stapler offers an easy squeeze lever action for reduced effort stapling, it also features an ergonomic design and rubber grips for a comfortable hold. Uses Spec Ops M68-50191/4-6M and M68-50193/8-5M staples. Limited Lifetime Warranty.