3-Position Manual Slider Button allows blade to stay locked in 3 positions (Fully extended blade, semi-protruding blade, Fully hidden blade) | Zirconium Oxide Ceramic Blade with Rounded Tip for Safety = Non-Conductive, Anti-Magnetic, Never Rusts, Chemically Inert (No Oil Coatings) + Stays Sharp Up To 10X Longer Than Steel Blades | 1 Slice Ceramic Blade = Up to 20 Metal Blades = Less Blade Changes = Less $$$ = Less Downtime = Less injuries + Simple No Tool Blade Change (Replacement SKU# 10404 or 10408) | Ceramic Blade only protrudes 1/2" - designed primarily for cutting corrugated packaging, foam, vinyl, boxes, cardboard, etc | To cut paper and thinner items please try the Slice 00116 Precision Cutter or 00100 Safety Cutter or use the Pointed Blades 10408 | Innovative box cutter | Stylish, durable, and safer to use than traditional utility knives | Dual-sided ceramic blade lasts as long as 20 metal blades; ten times sharper than metal blades and never rusts | Adjustable to three lengths | Easy to access blade storage