DescriptionThese whistling kettle cover knobs are made of premium material, which can withstand the long-lasting use. Features the premium material, which has high durability, not easy to deform. Fine workmanship, it ensures the practicality. They come with simple structure, which offer you easy installation. Features-Color: Black, red-Material:Bakelite, stainless steel-Size: About5.50X5.50X2.50cm/2.16X2.16X0.98inch-Manufactured stainless steel and bakelite, safe and durable.-They will make a loud whistle to ensure that you can hear it from another room when the water boils.-They are simple and convenient installation knobs.-Suitable for most whistling kettles cover, which ensure its practicality and popularity.-Easy to use and install, suitable for professional and personal use.6 x Kettle Lid Knobs