These Multipurpose Magical Wrenches suits nuts and bolts from 8mm to 32mm. The practical tools effectively self-adjust to the size you need and can be used with all the systems of measurement. Multipurpose magical wrench has 2 universal wrench with 3 different types of universal heads. The small wrench has a different-sized head on each end, while the large wrench has a single large head for bigger nuts and bolts, irrespective of their size and shape, the wrenches adapt by themselves. This multipurpose magical wrench is the solution to all your plumbing problems.