Product Specifications: Material: cast iron Size:17.5cm/6.9in Color: black Package content: 1Gas Ring Reducer Features: 1,Safe and Useful:Iron wok pan support rack is ideal for balancing smaller pots or pans on the stovetop. Eliminate dangerous cooking conditions and practice better kitchen safety. 2,Widely Applicable:Non Slip Gas Ring Reducer decreases the size of gas burner openings in center grates to give smaller pans, pots, and kettles a stable cooking surface, like sauce pans, small saucepan, tea kettles, butter warmers, Turkish warmers, omelette pans, stovetop coffee and espresso makers and more. 3,Premium Quality:This gas stove trivets is made of cast iron, sturdy and durable, not easily deformed, no rust, suitable for use in the oven, on the stove, in the grill and on barbecues/campfires. The humanized design to satisfy different family use. 4,Greater Energy Efficiency:Stove wok ring controls the heat of a gas range, Absorbs and diffuses heat evenly for greater energy efficiency. Also perfect for balancing smaller pots or pans on the stovetop. 5,Quality Service:Taking your satisfaction as the first priority, and guarantee to provide you with professional after-sales services. If you have any questions or concerns, please feel free to contact us.