Aluminum Alloy Material? The wrenches are made of lightweight aluminum alloy, weight: 195g. Overall heat treatment, good toughness, high torque, strong clamping property. ?Precision Turbine Design? The precision turbine slider is closely matched to the worm. The sliding is flexible and fast, the torque is strong, the toughness is good, the adjustment opening is stable, the sliding is easy to adjust quickly, and the work efficiency is improved. ?Widely Used Adjustable Wrench? Our wrenches are suitable for tightening or loosening nuts and bolts, pipes and tube nuts for removing plumbing fixtures, sinks, or gas industries. Not suitable for use on heavy metals. ?Adjustable Wrench Size? This strong yet lightweight aluminum wrench features adjustable jaws that open between 9 and 70mm. The wide jaws and short handle make it perfect for tightening the locknut on a basin. ?Ultralight Short Shank? Features a very low profile design, 8 inches long for easy access to tight spaces, and a non-slip