The image displays a gas ring reducer, also known as a gas hob reducer or coffee pot stand, used on gas stovetops. Purpose: It provides a stable platform for smaller cookware like coffee pots, moka pots, espresso makers, small saucepans, or woks that might not sit securely on the existing gas hob grates. Material: These reducers are commonly made of cast iron for durability and heat resistance. Design: They typically feature a four-claw or five-claw design to support the base of the cookware and often have a wider outer ring to sit firmly on the gas hob. Safety: Using a gas ring reducer helps prevent spills and wobbling of smaller pots, enhancing safety during cooking.