Review on 🌈 Vibrant Color Changing Cups Tumblers with Lids and Straws - Set of 7 Reusable Bulk Tumblers: Perfect for Adults and Kids - 24oz Capacity Tumbler by Tony Stone

Overall these are decent mugs for the price and do the job. I don't expect them to last very long but that's not why I bought them. They change color when cold drinks are added. My biggest problem with this is that the two lids and straws don't match the color of the cups. However, the photos show a slight change for the two cups I had an issue with. Yellow straw has a weaker yellow-green color. And a turquoise mug with a mint green lid and lime green straw. Again, you can see it in the photos, I just didn't pay close attention. All the other lids and straws match the changed color of the cup very well. For a cheap mug it's worth it.