X-ACTO X225 5pc No 25 Large Contoured Knife Blade. For heavy-pressure cutting carving, and trimming. Plastic, wood, linoleum, rubber, and foam. Contoured Edge. Fits 3/8 inch X-ACTO No 2, Type c, and Type D handles, as well as Excel K2, K5, K6, and K7 Handles. X-ACTO does not offer this item in larger packages.