Chain Hoist, Manual Chain Hoist, Max. Door Height (Ft. ) 16, Max. Door Width (Ft. ) 22, Commercial, Industrial, Residential, External Gear Drive, Standards 1-1/4 in Bore, Includes (2) Set Screws, (4) #41 Roller Chains, 1/4 in x 1 in Key, 36 Tooth x 1-1/4 x #41 Sprocket, Chain Keeper Bracket. This item has been restricted from sale in the following state (s): []