Art Alternatives A-1 Art & Craft Knives - Perfect for precision cutting and trimming of paper and other light-weight materials; these knives create elaborate detailed cuts. The A-1 Aluminum Light Duty Knife features an aluminum barrel with two textured grip areas to prevent slipping. The A-1 Comfort Grip Light Duty Knife features a comfort grip non-slip handle and is designed to prevent rolling. Each comes with one A-11 carbon steel blade and a hard plastic safety cap. Replacement A-11 blades are available in either a re-usable plastic case of 5 , or a bulk pack of 100.