Non-Stick Burger EXPress with Compacting Ejector Button Makes Perfect Patties…Every Time! Adjustable patty thickness from less than 1/4" to 1-1/2" Patty diameter 4-1/2" Heavy-duty aluminum construction Non-stick coating Spring plunger button compacts the patty tightly then pops back for quick patty removalQuick & easy clean-up Easy to use