A retractable utility knife for heavy-duty cutting on almost any material including boards, textiles, wire, some metals, leather, plastic, rubber, vinyl, rope and more. The design allows the blade to be completely retracted or extended at three cutting depths. The handle is smooth, balanced and features storage room inside for extra blades. One double-ended carbon steel blade included. Replacement blades are available in re-usable plastic cases of 5 each (AA17980).