The MARTOR SECUNORM 525 safety knife has a lightweight, ergonomic and, above all else, safe design that works to reduce the risk of injury without compromising on cutting performance. The retractable blade safely conceals itself automatically when not in use, while the handle and slider have been crafted to ensure precision, grip and Comfort. These features, as well as the abrasion-resistant aluminium construction ensures this knife is impressively Comfortable to use even over long periods.