Snap Off Utility Knife 3pack-LeBeila Stainless Steel Snap Off Blade Utility Knife, Retractable Box Cutter Knife Cutter, Auto-lock, Perfect Hobby Knife For Cutting Cardboard & Boxes (Blue/Red/Yellow) Material: Aluminum die-cast grip Snap Off Utility Knife / Made of recycled material Replacement Cutter blade - Size: 18mm Features an automatic blade lock, can used to cut cardboard, boxes,rubber, leather, acetates, linoleum, carpet, thin veneer,foam board, etc. Retractable, Efficient & Effective, All-Purpose Utility Knife with Snap-Off Renewable Blades and Auto-Locking Feature Package Included: 3 x Snap Off Utility Knives