Pneumatic 16 in replacement wheel for double cylinder Justrite hand trucks. Features speed-rated four-ply HD construction and a welded steel hub with dual ball bearings, sized for 0.75 in axle (not included). Size is 16 in x 6 in For hand truck models 35010, 35034, 35036, 35038, 35040, 35044, 35050 and 35052.