Standing four-shelf food service rack unit with anodized aluminum square tubing frame for corrosion resistance and to support a 330 lb/150 kg per shelf capacity * Polypropylene shelves can be removed from frame and machine washed at up to 194 degrees F/ 90 degrees C * Meets NSF/ANSI Standard 2 - Food Equipment requirements for food processing environments, including refrigerators, freezers, and warewashing areas * Comes with four 125 mm plastic swivel casters (two locking, two non-locking) for maneuverability * Assembly instructional video available online, no tools required