Physician's Scale Rugged, chrome-plated zinc die cast beam with engraved, paint filled , easy to read graduations. Simple in-field recalibration. Steel base with DURA TOP cover eliminates peeling. Durable baked enamel. Weight Capacity: 350 lbs in 1/4 lb increments. Base: 20"D x 10 3/8"W x 3 3/8"H 5 year warranty