This Ryobi RST4 4V USB Lithium+™ Cordless Stapler is perfect for crafting and decorating tasks. It is compatible with a wide range of staples and allows for quick and easy fastening of various materials like fabrics, cables, cardboard, fencing, and carpets. The stapler features a single fire trigger for accuracy, a cartridge release for easy refill, a low cartridge viewer for monitoring staple levels, and a safety tip to prevent accidental firing, offering convenience and safety. It can accommodate T50 staples up to 14mm, T25 staples up to 9mm, JT21 staples up to 9mm, and 18-gauge brads up to 15mm. With a 2.0Ah battery (not included), it can drive up to 340 x T50 14mm staples on a single charge. The stapler's cartridge has a 4-in-1 design for different staple types and brads, and markings on the casing indicate the exact staple and brad fire point for precise fastening. Weight: 0.992080179 Pounds.