Includes (8) 4-inch bar clamps/spreaders Continuous, trigger-operated ratchet action applies precise and consistent pressure Press quick release button to freely slide jaw to any position Strong reinforced nylon jaw assemblies Convert from clamp to spreader by placing fixed jaw on opposite end of bar Black Duck Brand 4-Inch Ratchet Bar Clamp / 8-Inch Spreader for Photography, Woodworking, Crafts, and More!