300ml earthenware mug, revealing your full colour design when filled with hot water! The Chamelon mug has a specially formulated heat sensitive thermo-chromic coating, so when hot water is poured into the mug it turns back into its natural white colour, exposing your print underneath and disappearing again as the mug begins to cool after use. Novel give-away which is sure to always be a talking point. Due to the inherent properties of ceramic ware produced by foreign manufacturers, there may be small imperfections or irregularities which should not be perceived as defective. Variations in materials, firing temperature and colour pigments may result in variations in glaze and imprint colours. These variations must be considered acceptable. Recommended for hand-washing only.