The Kitchen Sense 2.5 liter Stainless-Steel Whistling Tea Kettle is constructed with high quality stainless steel. The Kitchen Sense Tea Kettle will whistle when the water is boiling inside. The Handle stays cool of easy pouring. The thick stainless retains heat making your second cup of tea just a good as your first. The Kitchen sense whistling tea kettle is dishwasher safe and easy to clean.