Unique design turns staple legs outward after penetrating corrugated Breathable AntiJam magazine Patented easy squeeze mechanism Lightweight die-cast aluminum design Steel handle with overmolded rubber grip for comfort Convenient bottom loading for quick and easy reloading Nickel chrome plated steel magazine and core provides smoother; more durable sliding surface for staples Product Details Weight 1.8 lbs; 0.82 kilos Magazine Capacity 84 staples Drives 1/2" to 9/16" STCR5019 series PowerCrown staples Application Duct insulation; Cardboard tagging