The Air Locker U630A 22 Gauge 3/8 inch Crown C Type Upholstery Stapler 1/4 inch to 5/8 inch, 22 gauges C-Crown Upholstery Stapler is an easy to use pneumatic stapler with plenty of useful features. It uses standard Senco C Type 22 gauge, 3/8 inch crown staples to get the job done right. The high-capacity bottom-load magazine handles 200 staples and the driver guide moves back to clear jams from the magazine - Features: Automatically adjusts for fastener lengths between 1/4 inch - 5/8 inch | Bottom loading magazine | Heat treated hardened tool-steel nail driver | Adjustable exhaust to keep oil condensation away from work | No safety - Free firing - Applications: Bedding | Cabinets | Furniture | Molding | Picture Frame | Roof Felt | Upholstery | Trim