Patent Pending spring recoil mechanism provides automatic power assist so stapling is up to 5X easier than with traditional staplers! Staples up to 20 sheets. Staples remaining window. Plastic body with non-slip rubber grip on handle and base. Chromed strike plate, staple track and anvil. Stands horizontally or vertically. Drop-in loading of a full strip (210) of 1/4" standard staples. Package includes 210 staples. Manufacturer's two-year warranty. All sheet capacities are based on 20-lb. bond.