The model No. TR250 Sharpshooter staple has an easy squeeze handle, requiring 30% less force while delivering a 37% increase in output. Easy squeeze staple operates as a staple , nailer, cable tacker, and screen/canvas specialty tool. Handle locks down for storage. Super soft slip- grip for extreme comfort. Dual power lever (High/Low) for hard and soft materials. Ergonomically-designed. Uses brads: 1/2" and 5/8". Uses staples: Stanley SharpShooter model No. TRA700 series or T-50 staples - 1/4", 5/16", 3/8", 1/2" and 9/16".