This hand table-top grater is SAFE AND CONVENIENT for use. Hands and props have zero contact, and it is easy to slice vegetables and fruits without being skilled, quick and convenient, the sliced piece is even and thin, the cut roots are similar, and the chopped ends are evenly graduated. It can be washed in the dishwater. If the insider of the fitting penetrates into the water, it can be removed and dried, then continue to use. The round drum slicer has 3 easily interchangeable drum blades for different cooking choice, including fine, coarse grating/shredding, and slicing. Turn the knob clockwise to lock the chuck. Then put the knife barrel into the transparent cup slot and push it to the bottom. After which, aim the handle at the cross lock of the knife barrel. Place the pressure hand on the top pf the transparent cup. This hand table-top grater is SAFE AND CONVENIENT for use. Hands and props have zero contact, and it is easy to slice vegetables and fruits without being skilled, quick and convenient, the sliced piece is even and thin, the cut roots are similar, and the chopped ends are evenly graduated. It can be washed in the dishwater. If the insider of the fitting penetrates into the water, it can be removed and dried, then continue to use. The round drum slicer has 3 easily interchangeable drum blades for different cooking choice, including fine, coarse grating/shredding, and slicing. Turn the knob clockwise to lock the chuck. Then put the knife barrel into the transparent cup slot and push it to the bottom. After which, aim the handle at the cross lock of the knife barrel. Place the pressure hand on the top pf the transparent cup.