Material: Made of high quality and durable aluminum alloy. Not easy to corrode, sturdy and durable Size: The adjustable wrench has adjustable jaws that open between 6mm and 68mm. Wide jaws and a short handle make it perfect for tightening the waste lock nut on a cymbal in tight spaces, non-slip grip to save your knuckles when working. Precision Impeller Design: Precision impeller slider and auger are closely matched. Flexible and fast sliding, large torque, good toughness, stable adjustment hole, easy sliding and quick adjustment, improve work efficiency Wide application: for tightening and loosening nuts and bolts, suitable for applications in pipelines, of course, gas industry , plumbing, sanitary engineering etc.