Thermo-Plate™ Platter Insert Only, for model RO128, oval, stackable, stainless steel, hand wash. Plate constructed from 304 bright annealed, .048 gauge stainless, optional aluminum (ro 7). Stackable. Service Ideas, Inc’s original Thermo-plate™ platter technology keeps hot foods hot and cold foods cold. The stainless sizzle plate is ideal for steaks, pasta, seafood, poultry, sandwiches, omelets and ethnic presentations. Lightweight polyester holders provide strength and durability and can greatly reduce replacement costs of broken china.