Spot Nails JS5016LN Upholstery Stapler Long Nose 20-Gauge 1/2-Inch Crown Front Exhaust with Case Drives 20 Gauge 1/2-inch Crown Staples Staple Lengths 1/4-inch-9/16-inch Uses Spotnails 35000 & Duofast 50 Series Staples Magazine Capacity: 84 Staples Front Exhaust