5 Colour Changing CupsA set of 5 colour changing cups will give you different good experiences. The colour of these colour changing cups will change magically as soon as the iced drink hits the cups, the lower the water temperature,the more obvious the colour changing effect. Safe MaterialsOur colour changing cups are made of high-quality food-grade BPA-free plastic,durable, non-toxic and environmentally friendly, please rest assured to use. And the colour changing cups can be reused, which is very suitable for daily use. Splash-proof & Easy to CleanThese 24 oz colour changing cups with lids and straws,the splash-proof design lids help to reduce spills and messes; the colour changing cups are easy to clean and you can simply put it into your dishwasher after use. Different Color Every Day5 colour changing cups with 5 different bright cute colour changing, kids have different colour everyday, it's amazing. In addition, they can mix and match with the different colour lids and straws or decorate these colour changing cups with their favorite sticker, that's perfect for playtime. Wonderful Gift for ChildrenThese colour changing cups is great gift for your kids or friends, your children or friends will be surprised by the colour changing.Suitable for outdoor,camping,party, such as birthday party, family gathering, cinema room.