Crafted from lightweight carbon steel to quickly bring water to a boilVibrant porcelain enamel is non-reactive, non-porous, and resists stains, rust, scratches and flavor absorptionFixed single-tone whistle alerts when water has reached a rolling boil, and can be easily flipped open for pouring 2.2 qt. capacity is ideal for multiple servingsBlack stay-cool halo handle and gold stainless steel knob ensure secure handlingCompatible with all cooktops; Hand wash with warm soapy water