Carlisle Floor Rack System, Grey, 12″ X 12″This interlocking modular system provides a raised surface in dry and refrigerated storage areas and is perfect for areas where moisture collects on the floor.Color: Gray Material: Polycarbonate Made in USA & NSF Approved Length: 12″ Height: 1-1/2″ Width: 12″ Easy to clean Open design allows for greater air circulation 293560