Z RACK CHROME OSHA ORANGE BASE WITH ADD ON RAIL AND HARDWARE-CHROME-Lot of 1 Commercial Grade Rolling Z Rack is Heavy-Duty and Durable Patented Nesting Base is painted OSHA Safety Orange 4" Rubber Wheels (2 with brakes, 2 without) allows for smooth rolling Included Add-On Bar with Hardware can be placed anywhere on the uprights. Overall Dimensions: 24"W x 63"L x 70-1/2"H (Floor to Top). Hang Space: 60"