Colour Changing Cup

This cold drink cup reacts when liquid contents are poured, revealing a yellow colour. The cup is single-insulated and coated in a green colour, supplied with a yellow straw and a rubber silicone stopper at the end of the straw, for convenient sipping. Hand wash. Plastic. Reusable. 24oz (680ml). H18 x W10cm approx. Personalise in white vinyl, maximum 15 characters.