The Vevor pneumatic staple gun is a 21-gauge upholstery stapler designed for 80 series standard staples with a 1/2" crown and 1/4" to 5/8" staple lengths. It features a 100-piece magazine capacity, 70-110 PSI operating range, and a lightweight aluminum alloy body for comfortable one-handed use. Safety-focused details include sequential firing, a safety flap, a rotatable exhaust, and included safety glasses. This stapler is well suited for upholstery, woodworking, furniture assembly, picture framing, decorative trim, and other DIY projects. An air compressor is required for operation and is not included.