Housing made of coated aluminium, a strong vacuum foot holds the grater securely on any smooth surface, otherwise the grater can be attached to the table with a clamp. With 4 drums made of high-quality stainless steel. Drum 1: Bircher universal drum to grate apples, carrots, etc., drum 2: Cutting drum to cut vegetables, drum 3: to grate cucumbers, celery, etc., drum 4: fine grater, to grate chocolate, nuts, etc.