Magnusson Carbon Steel Knife blade, UXKN06 is compatible with a 62 mm utility knife (sold separately) These are replaceable blades that come in a pack of 100 These blades are made from carbon steel These carbon steel blades are heavy duty, general purpose blades These blades are ideal for carpet, vinyl, any other sheet material requiring a stiffer and stronger blade Size: 19 (w) x 62 (l) mm