HEAVY DUTY UTILITY KNIFE: Full metal, durable design allows for a long lasting, extremely durable cuts and slices on boxes, plastic packaging, straps, carpet, roofing, drywall and other materials. Perfect box cutter utensil | RETRACTABLE & ADJUSTABLE BLADE: Razor simply slides open to 3 different blade lengths for exact cuts. Blade easily retracts to lock safely within metal frame when finished using | BULK BOX CUTTER SET: Includes 20 classic utility knives saving you money and ensuring you always have extra | REPLACEMENT BLADES: Includes a refill pouch containing 5 extra blades | DIMENSIONS: 1.25” Width x 6” Length. Weight: .25 lbs