The retractable utility knife is sturdy and strong, boasting stainless steel blades of high quality and an ergonomic handle. It cuts sharply and resists rust. Professional box knives ensure strength, comfort, and maximum productivity with their aluminum shell design, which is more durable and stronger than normal plastic cutters. They feature a multi-position blade slide and come furnished with one blade. An interlocking overlap nose secures blade safety between knife halves. Suitable for office, warehouse, shipping, and home improvement tasks, these knives are adept at cutting moving boxes, cartons, leather, cardboard, carpet, rubber, fabric, wallpapers, paper, tape, plastic, foam board, DIY school projects, art and craft projects, and more. Additionally, they feature a hang hole for convenient hanging and carrying, and they make loading the next razor easy, ensuring you always work with the sharpest edge.