This accessory is necessary to stabilize round bottom woks on the gas stoves. This is a temporary wok ring. More permanent wok rings can be purchased that fit your exact stovetop brand, that are made of cast iron (use search query like "cast iron wok ring" )

Not designed for woks over 16″ diameter.

Nickel plated steel. Can be used right side up or upside down depending on wok size and stove top surface.