TAYAMA RING-2000 Turbo Oven Extension Ring Tayama Turbo Oven Extension Ring Accessory Fits models TO-2000, TO-2000A and other similar styles The ring is 3 Inch high and when placed on an oven's base opening below the oven's top it doubles the oven's capacity Easily disassembles for compact storage ; compatible with Tayama brand Convection Ovens Cook larger items in your Turbo Oven