OLFA professional snap-blade utility knife features auto locking blade slide; durable plastic pocket/clip/blade snapper; thin, contoured durable ABS plastic handle; and stainless steel blade channel that tightly secures the blade. Long-lasting and durable blade made of carbon tool steel. Good for paper, wallpaper, art and craft applications, caulking, etc. Includes one snapoff blade. Takes OLFA AB and ABB replacement blades.