Weston Double Burger EXPress... Simply place any ground meat on the patty forming tray close the lid and press the patty presser button down to compact the meat into perfect patties of any thickness up to 1-1/2". Spring plunger button compacts the patty then pops back for quick patty removal; Non-stick coating; Constructed of heavy-duty aluminum; Adjustable patty thickness from 1/4" to 1-1/2" with a 4-1/2" diameter; Helps ensure that patties will not fall apart on the grill!