The X-Acto #2 Medium Weight Knife features a 5" aluminum handle that works with the #2 blade for making precise, accurate cuts through a variety of different craft materials. The #2 blade is great for cutting medium to heavy-weight materials such as wood, board, papers, plastic, acetate, and more. This knife handle also works with the #'s 15, 18, 19, 22, 23, 24, 25, 26, 27, and 28 blades.