Comfort Grip SELF-LOCKING 4.75" Canvas Pliers - Increased power with less strain - ULTIMATE ProSeries by CANVALOK ProSeries ergonomic design. Unique LOCKING pliers greatly ease the stretching of artist canvas and other fabrics. ELIMINATES the need to continuously squeeze pliers while stretching fabric. DUAL-MODE: Can be used as locking OR traditional non-locking pliers. Precision-machined, 4.75" (12cm) spring steel jaws lock onto and grip any type fabric without slippage or damage. Proprietary tongue and groove design means no rubber or abrasive pads to wear out. Use on a wide variety of materials including linen, leather, vinyl, upholstery fabrics. Heavy-duty, vari-modulous chrome vanadium-steel construction. Comfortable rubber grips. Durable, textured epoxy finish jaws. Save money! Make your own canvas, in the size YOU want, better and easier than with old-style pliers. No strain, no pain!