If you're interested in building huge, strong shoulders, you should do 300-pound one arm presses.
Warehouse clean-up: Sale single Big Boys are in varying states of imperfection, with dings, scratches, light oxidation, a bit of grunge. Brutally strong U.S. prime alloy steel in natural finish, 24" long overall, 1-1/16" dia., 5-1/4" handle; no collars.
No. 1224-A (8 lb.) single dumbbell bar, no collars $124.95