1/2 Ton Cap., Spanco, Aluminum Gantry Crane, Pneumatic Tire, Single Tire, Without Brake12" diameter, single, pneumatic tire, without brake, includes 4 position swivel lock, only available for Spanco Aluminum A-Series Gantry Crane, standard polyurethane casters are not supplied if Pneumatic tires are ordered with the gantry. 4 pneumatic tires total are required, at least 2 pneumatic tires with brake are recommended for each pneumatic tire conversion. Product Specifications ASSEMBLYAssembled BRANDSpanco CONSTRUCTIONPneumatic MANUFACTURERS PART NUMBER32-0079PNE TYPEAccessory WEIGHT LBS20