Folding Utility Knives Box Cutter Retractable Sharp Blade Easy Blades Change Safety Auto Lock Brink Tools BR-T610-027 EXTREMELY SHARP blades, Box Cutter Safety Lock STAINLESS STEEL Blade, can be replaced Quickly UTILITY KNIFE with an headlock ensuring strong and stable cut, to protect you from cutting yourself. GREAT for cutting, cardboard, paper, drywall, vinyl, foam board Case Material: ABS Stainless Holding, Blade Material: SK4. Blade Size: 3.93 (L) X 0.19 (T) Inch