This set of 4 kids colour changing 354ml tumblers, complete with straws and lids, adds a pop of colour to summer gatherings and everyday use. Simply fill tumblers with your favourite drink and add ice to watch the colour of the tumbler change instantly. Features: Colour changes instantly with ice Reusable and durable Stackable for easy storage Splash resistant lids BPA & lead free Fits most cup holders 354ml Specifications: Dimensions: H:20.3 x W:2.4 x D:19.0 cm Colour: Multi Material: (pp) Polypropylene Model Number: 33666