Material Alloy Steel Item dimensions L x W x H 17.4 x 12.6 x 3.5 centimetres Number of fasteners 600 Operation mode Manual About this item YOUVE NAILED IT: Rapidly fix and attach materials with the Hi-Spec 3-in-1 Staple Nail Gun Set. Recover furniture upholstery with its penetrating staples, nail backdrops into medium density plywood, put up posters and notices, or tidy-up cable runs. Get started now with its 600 Piece refill of staples and nails LOCK LOAD: Clear step-by-step loading and usage instructions are included. Just push to release the spring-loaded plunger, insert the staples or nails, then replace. A big steel handle provides maximum grip and leverage to punch down PRESSURE SETTING CONTROL: From putting up light and thin materials eg, cardboard, posters, plastic sheets to 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 EASY JAM CLEARANCE: Keep downtime to a minimum in DIY work and craft projects with the quick-release carriage. Push down on the side-tabs and lever out to easily inspect and quickly remove any stuck staples and nails 3 TYPES OF STAPLES NAILS: Included is a 600 piece box refill: Standard office-type Medium Crown staples for general-purpose material fixing, Brad Point Fine Nails for punching into wooden frames, and U-type Narrow Crown staples used for fine craft work or fastening cables and wires. Compatible with 4-14mm tall Medium Crown office staples, 10-14mm tall Brad Point Fine Nails, 10-12mm tall Narrow Crown/U-type staples