LATERN 10Pcs Colour Changing Cups with Lids & Straws, 710ml Reusable Plastic Tumblers Cute Kids Drinking Cup Bulk Travel Mugs Party Tumbler for Iced Drinking Coffee Water (10 Colors)

Thesecups will change to be colourful when it is filled with icy cold water it's the cold that triggers the change. Once it warms up colournfadesnor when I added cordial could just see the colour of the juice.Altho appart from that a really good set of cups. Have matching lids and straws.The lids push on tightly to help avoid spills. The straws have a lip around one end to stop them been pulled out fully of the lid so won't get lost.Tall cup can fit a large drink in.Comes with some straw cleaning brushesThey are safe for kids been plastic ideal for outdoor time or going on picnics ore even to have In the caravan/camping holidays.Only thing in my set is one straw didn't match colour of lid I got 2 yellow straws and didn't have an orange straw