Modern Box Cutter, auto retract, blade vanishing technology, extra tape cutter at back, dual side edge guide, 1 blade depth setting, 2 blades and holster - Grey/Black Color 4500 Easy Cut Fast and Secure Safety Box Cutter Singlewall Corrugated Board For Right and Left hand Use Precise Single blade setting (1 Depth Setting Only, Protrudes Less 1/4 inch) Snap-on holster and lanyard system rotates 180-degrees Squeeze Trigger / Edge Guides / Extra Blade Compartment