Gardner Bender's Big Ben aluminum hand bender has improved traditional hand benders by enlarging the hook with a 5x durability factor, increasing the foot pedal size and clearance by 40 percent , highlighting the marking and incorporating a dual sight-line system for bending on the floor or in the air. Includes industry standard marking to simplify the job. Made of rugged, heat-treated aluminum. Includes a detailed hand bending manual which clearly illustrates various bends and how to achieve them including the mathematical formulas to complete more complicated bends.