Fancartuk Color Changing Cups Tumblers with Lids Straws - 7 Reusable Bulk Tumblers Plastic Cold Cups for Adults Kids 24oz Tumbler

Followed instructions of filling with hot/cold liquid at first use and never had a problem with color changing. Bright colors and easy to clean. Lids fit well along with quality straws made for great cup choice. We did add vinyl designs which adhered perfectly. Plan to purchase another set.

My child loves these cups! He likes trying to guess what color they will change into, and match to the corresponding lid. They do well in the dishwasher if I don't use the heat dry.

One of the cups don’t color change at all. My kids are happy though. The cups are rather large for kids, so I wish I had gone with a smaller size.

I bought these for my grandchildren 7 and 5 yrs old. They love the colors and so do I. My husband uses these cups for ice water. I use them for juice and milk. We don't have to worry about our cat, grandkids, or ourselves spilling.

My kids loves the color changes when it got cold. I was concerned that the lids would be cheap but nope, nice and sturdy. The straws are hard plastic and comes with a straw cleaner.

All in all, for the price, these are decent cups and do the job. I don’t expect them to hold up very long, but that’s not why I bought them. They do change colors when cold drinks are added. My biggest issue with them is that two of the lids and straws do not match the color of the cups. However, the photos do show a slight variation for the two cups that I have an issue with. The yellow straw is more of a faint yellow-green color. And turquoise-ish cup has a mint green lid and lime green straw. Again, the photos show this, I just didn’t pay that close attention. All other lids and straws match the changed color of the cup very well. For a cheap cup, it’s worth the price.

Really think these are worth it. They change color and I could careless about that. They are sturdy and lids stay put.

These were so fun to take on a recent trip. Everyone had their own color and they were great by the pool!

The colour change mugs were a fabulous hit with the little one sin our family. They re perfect for parties or everyday use!