Reusable Color Changing Cup - 5 Pack 24oz Travel Iced Coffee Mug Tumbler with Straw Lid,Plastic Smoothie Milkshake Bottle Magic Cold Drink Party Water Cups & Go Cup for Kids Adults

Good quality cups and they do change colour. They hold a good amount of slushi and look really cool when filled

Great for kids and milkshakes excellent value

Very sturdy cups, tight seal on the lid and comes with lovely straw cleaners and a sponge. I was disappointed that they didn't change colour when I washed them out of the packaging as you'll see in my photos. Then I re-read product details and realise the liquid must be ice ice ice cold, and clear, to see the colour change. I use cordial juice from the fridge which doesn't show the colour change but product itself is lovely. A vodka lemonade and ice might show the colour change and I'll be testing at the next family bbq we have :D

Brilliant cups to take on holiday to keep sand and bugs out

We took these on our all inclusive holiday to use around the pool. They are wonderful! They were sturdy and didn’t leak loads when knocked over by my kids. They are a great size so you don’t have to keep getting up so often to refill. Our hotel used paper cups near the pool so these were a godsend. They didn’t keep the drinks ice cold but it was 33°C so that wasn’t unexpected. They didn’t taint the taste of the drinks and the colours are fab! The cleaning sponge and straw cleaner are an excellent addition to the set as you just pop the set in your suitcase and off you go. This helped us keep them clean whilst we were away. We have since used them at home as my kids love them.

Not only do they change colour the colder the water so look cool, but they are convenient, easy to clean. They come with straws and a cleaning brush for the straws and cleaning sponge for the cup and lid. They don't leave your drink with that horrible plastic taste that some cups do and fit nicely in a cup holder. They are sturdy and robust and you can walk etc without it leaking or spilling, but if you knocked it over it's obviously not sealed. In my experience it does seem to keep the drink cooler than other cups.

Good cups for AI holiday to keep drinks in. These are not insulated though so drinks do get warm in the sun. Unfortunately no colour change happened on any of our cups.

Great cups for the price. Lids fit perfectly, Great size. Great straws. Come with handy cleaning utensils. Couldn't ask for more. Only thing is they don't change colour. Not an issue for us, it's not why we bought them but if that's what your after, these may not be the ones for you.