Thermalloy® Double Boiler Set, 3-piece, includes (1) each: 20 qt., 11-7/8" dia. pot, solid insert, & cover, oversized stay cool hollow cast riveted handles, operates with gas/electric/ceramic/halogen/induction, stainless steel with 1/4" aluminum core, natural finish, NSF (cash & carry packaging)​​‌‌​‌​‍​​‌​‌‌‍​​‌‌‌‌​‍​​‌‌​‌‍​​‌‌​‌‌‍​​​‌‌​‍​​‌​​‌‍​​‌‌​‌​‍​‌​​‌​‍​​‌​​‌‍​​‌​​‌‍​​‌​​‌‍​​‌‌‌​‍​‌​​‌​‍​​‌​‌‌‍​​‌​​​‍​​​‌‌‌‍​​‌‌‌​‌‍​‌​​‌​‍​​​‌‌‌‍​​​‌‌‌‍​​‌‌‌​‍​​‌‌‌​‌‍​‌​​‌​‍​​‌‌​​‌‍​​‌‌​​‍​​‌‌​​‌‍​​‌​​‌‍​​‌‌‌​‍​​‌‌​‌‌‍​​‌‌​​‍​​‌‌​‌​‍​​‌​​‌‍​​‌‌‌​‌‍​​‌‌‌‌​‍​​‌‌​‌​