RELIABLE & DURABLE. Retractable snap-off utility knife is sturdy and strong as it has stainless steel blades of high quality and ergonomic handle. Cut sharp and rust resistance. Grade heavy duty use. COMFORTABLE GRIP. Professional box knives feature soft rubber handles to ensure strength, comfort, and maximum productivity. Suitable for hobby, office, school, warehouse, shipping, home improvement. SAFETY LOCK. Furnished with one 18 mm knife blade with 8 snap-off points. Slider mechanism has audible "click-stop" and adjustable self-locks for greater blade security. MULTIUSE. Cutting moving boxes, carton, carpet, leather, cardboard, rubber, fabric, wallpapers, paper, tape, plastic, foam board, DIY, art and craft projects, and more. EFFICIENCY. 18-position slide exposes variable cutters length. Easy load the next razor, always working with the sharpest edge. Compatible with 18mm refills blade.