3-IN-1 APPLICATION: It fits 3 kinds of different staples/nails such as door-type staples, U-type staples and T-type nails. Rapidly fix and attach materials with our staple gun. Recover furniture upholstery with its penetrating staples, nail backdrops into medium-density plywood, put up posters and notices, or tidy up cable runs LOCK & LOAD: Just push to release the spring-loaded plunger and insert the staples or nails. EASY TO USE: Its anti-slip grip also gives comfort to the user's palm which reduces the pain while doing heavy/continuous work. Its ergonomic design makes it ideal for home and office use EASY JAM CLEARANCE: Keep downtime to a minimum in DIY work and craft projects with a quick-release carriage. Push down on the side tabs and lever out to easily inspect and quickly remove any stuck staples and nails APPLICATIONS: Suitable for putting up light and thin materials like cardboard, posters, and plastic sheets, from fixing and fitting upholstery, leathers, cork, underlay, felt, and fabric covers to nailing plywood frames. Adjust the pressure screw to suit the thickness of the material and surface type, then squeeze the handle firmly Product Name: Stacker Staple Gun Nail size: 4-14mm Nail types: door-type , U-type and T-type Color: As Shown Material: Metal Package Contents: 1 * Nail Stapler 3000 * Nails