PURE color changing bottle, Hello, 550 ml

IT‘S MAGIC - fill your water bottle and the color will change! The new PURE COLOR color changing bottles change color when the temperature changes. If the temperature of the bottle rises above or below 18 degrees - the color changes. That means: on hot days the color changes when cold water is added and on cold days the color changes due to the warmth of your hand. Made of stainless steel with a leak-proof screw top lid. Available in 2 sizes and 3 designs.