Light-duty, retractable knife set includes two sizes for versatility: a 9 mm snap off knife & an 18 mm snap off knife. Built into the knife caps are removable blade snappers to easily snap old blade sections off & expose a new sharp blade section for immediate use. For convenience, the 9 mm utility knife has an integrated pocket clip for easily hanging off a belt or pocket. Bright yellow on the housing allows for easy identification. Knife Type: Utility; Blade Type: Retractable; Snap-Off; Number of Blades: 2; Blade Length: 9 mm; 18 mm.