The size was just fine and the strength of the magnet was weaker than I thought, but on the contrary it might be easier to use this one. When I arrived the body was surprisingly heavier than I imagined. (There is a black weight on the bottom) But it is natural if you consider things when picking up screws stuck with magnets. I thought that it was easy for thin materials such as washers to be easy to pick up why the bottom surface chose the corrugated shape. Since the price is somewhat higher, the overall evaluation will be about 6 in 10 steps.