Retractable utility knives are a safe, easy, all purpose tool ideal for cutting heavy duty materials, breaking down cardboard, opening packages, and more. This knife features a comfortable, well balanced gray metal handle is lightweight, easy to hold and has space for storage of extra blades. Details:SilverIncludes 3 extra bladesStrong metal frameRetractable blade mount can support any 2, 3, or 4 notch utility blades