This wok ring with non-sharp edge on both end is best useful for round bottom wok to use. Universal size for gas stove fry pans. For round bottom woks, wok ring should smaller than the desired wok diameter.Height: 1.57 Inches; Bottom Diameter: 11.8-Inch; Top Diameter: 10.43-Inch.Wok ring has a durable construction, perforated sides on a flat steady rim. Wok Rack can be used to support woks when cooking on a regular range. With this ring, narrow side down, heat wok on small fast electric burner. It is -frugal, heat raises and drops quickly, and cooks food as it would on gas burner. All coils are covered, so all energy is used.Ring fits outside coils perfectly. Flat-bottom wok sits close enough to absorb all heat. Gap dissipates heat all over wok, so food does not burn. Gap is small, so flat bottom and flat coils bump and limit wok movementcolour:Silvermaterial:stainless steelsize:26.5x30x4cmPackage Contents:2x wok racks