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 light-weight, easy to hold and has space for storage of extra blades. Includes 3 extra blades Strong metal frame Retractable blade mount can support any 2, 3, or 4 notch utility blades