Knack Unicorn Magic Water Bottle 600ml

This unique magic bottle features a graphic image. Keep you and your child fascinated by pouring chilled water into the bottle and see the smile broadening on their face when the character changes colours. The science behind this is thermometric, which allows the change in colour due to a change in temperature.Unique color changing bottle - Character on the bottle changes color when temperature of the contents changes,BPA free bottle,Made from Stainless steel which is durable,Pop up type cap.