Fatmingo Dl2057 Utility Knife 18mm Stainless Steel Heavy-duty Auto-lock Snap Off Blades Box Cutter with 10 SK-5 Extra Replacements(Silver) Heavy duty deisign and rust resistant,ergonomic design for comfortable handle SK-5 blades are hign carbon steel,sharp and durable Each snap-off blade has 8 sections so you'll always have razor-sharp cutting edge; easy blade change Cutting material: Cardboard, rubber, leather, corkboard, acetates, linoleum, carpet, thin veneer,foam board, etc. Package includes:1xUtility knife,10xblades