[Compatibility]: The 4.72-inch Gas is compatible with a wide range of small kitchenware, including pans, coffee pots, teapots, and various small frying pans. It is an indispensable accessory in designs. By reducing the size of the gas burner opening in the central grate, providing stable cooking for a variety of cookware on gas stoves [Material]: The Gas is made of high quality iron with black finished. High Strength and Durability. Iron's excellent thermal conductivity enables it to quickly and evenly absorb heat from the gas flame, effectively distributing it to the bottom of pots and pans, ensuring uniform heating at the bottom. It also adds of vintage charm and warmth to your kitchen [Ease of Use]: the Gas operates easy and convenient. Simply place it steadily over your gas stove, then set your cookware on top. Its structural design effectively slows down the direct contact of flames with the pot or pan bottom, achieving a gentle transition of heat, and improving cooking efficiency. (Easy to Clean: Clean it with warm soapy water, wipe dry and place in a dry environment.) [Functionality]: The Gas can reduce heat loss, improve thermal efficiency and making the cooking process more energy-efficient. By evenly distributing heat, it ensures that the bottom receive optimal cooking temperatures from the center to the edges, imparting rich flavors and textures to every bite of food Colour:Black Material:Cast iron + enamel Package Contents: 1 x Gas Rings Reducer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.