Features and Benefits:�IMPROVED DESIGN - Will fit ANY combination of 4 GoJaks (R & L, Any Model)�UPGRADED CASTERS - Rolls easily to work area with upgraded 1/2"-13 TPM Casters�EFFICIENT PROCESS - Improved laser cut tabs allow load and unloads in seconds. No struggle�UNMATCHED DURABILITY - Robotically welded frame guaranteed for life.�AMERICAN MADE - Designed, Tested, Manufactured, and Proven in the USA since 1984Notice: Rack only; this rack does not contain GoJack dollies.