Somerset recommends synthetic rollers although they do make them in metal if that is preferred. But your dough is less likely to jam up on the synthetic rollers. This machine will roll up to a 20 inch diameter sheet of dough. This is a SIDE operation machine with 20 inch manual adjustable synthetic rollers. Fixed speed, safety sensors, spring loaded scrapers, stainless steel, large hopper, 4 inch adjustable stainless steel legs, UL, NSF, CSA, CE, USDA. Since 1946, Somerset Industries has been designing and manufacturing professional grade bakery equipment that performs consistently and reliably year after year, no matter the application. Their equipment is designed to last, withstand heavy use and require little maintenance. Somerset is manufactured in the USA and used by many major food chains and baking plants.