These haven't really been fun for my kiddos. The six year old didn't see the big deal in colored water and the three year old was only amused for about two seconds. If using this I'd pair it with some bubbles. Or just go for bubbles. So much simpler, lots more fun. Also, be careful if you mix them. you could get some unsightly colors! Final note, don't wear a lighter color while helping your kids bathe in water that has been colored by this! I have a light pink maxi dress that will never be the same!

These are fun and do as they claim but the down side is I have to clean the product after each use! Fun for kids not for moms

I bought these for my son. I was looking for some fun bath time things since the same toys over and over can get boring. I had never stopped to think about our bath tub. It says on the container that it "could stain porous surfaces" our bath tub is an older claw foot where the lower surface has worn away. So I didn't want to take the chance of having a red or blue bath tub, I decided to let him play with them in the sink. They change the color of the water quickly and it is bright. It washes away from the surface of out sink and from skin easily. I wouldn't let this get on clothing. He was splashing too much so I picked up the drop that was still dissolving to throw it away and it felt like it was burning my fingers. It didn't burn me but it did cut my finger open! And it was bleeding pretty good. I can't imagine my son grabbing a hold of one of these and what it would do to his tiny fingers. I just wanted to put this review on here as a precaution to parents who buy these with smaller children let it dissolve before they get in the tub or just be extra careful. It says three and up on the tub but I would go as far as saying probably older than 5 or 6 and up.

Leaves horrible stains. Won't use again. Test your tub before you use these.