This Pelouze 600 Series Mechanical Portion Control Scale from Rubbermaid requires no tools and has no loose parts! The mechanical scale's dial rotates for easy tare, while the platform may be used as a handle for easy carrying. The portion control scale is constructed of stainless steel inside and out, so it will not rust. An alignment notch on the portion control scale allows precise and quick zero reset. Dishwasher safe for easy cleaning and complete sanitation.