Aladdin Temp-Rite Heat on Demand Ultra Induction Base, Sapphire (case of 12) IHB24FModern design, shape and styling which extends holding time of food through its thermal efficient design. Base accommodates standard 9" dishware and domes. Made of durable high impact high temperature plastic with a wide color selection. There is an insulated 'active heat source' which keeps heat with the pellet base. Every base is heated to the same consistent temperature, every time. The base sides stay cool, so no gloves, base lifter or underliner