It features an adjustable rail and 4 " industrial wheel casters with a blue base for safety. Wheel it wherever you need to take it, hang up your stock, and wheel it right back to the warehouse. You can't get more heavy duty than the Super Heavy-Duty Z Trucks Single Rail Salesman Rack. It's the perfect warehouse solution for restocking, overflow, sales, and specials. It measures 66 " high x 63 " long x 24 " wide, and it has a strong capacity of 500 pounds, making it large and reliable enough to handle loads of merchandise. 66 " H X 63 " L X 24 " W, Weight Capacity 500 lb, Hangrail bar adjustable in height, Locking casters, 85-60258