4 M Crystal Growing Experimental Kit (Multi Color)

This product is pretty average.The crystal doesn’t grow as big as shown in the pictures. The smaller ones formed better than the bigger ones.

Super time-consuming. Might not be every kid's favourite to wait so long. But definitely crystals formation is fun

Nice activity for kids. Worth buying.

Bought this for 7 year old grandson for Christmas. I have added a photograph of his first attempt. What a wonderful kit, when he asked for it I thought he was too young but it made his day. Amazing product.

My 7 year old son loved this! We read the instructions and carefully did the experiment, be aware this is chemicals and needs adult supervision but as the crystal grows my son was more and more excited.

Excellent kit,you get to make 7 different sized crystals and you get to mix up the colours to your preference. After only 2 days I took these photos and im very excited to see the final product.

We grew crystals from it the second time. We had to learn not to touch the tub whilst it was in the process of making crystals otherwise it makes lots of small ones.

The item description looked good, so we bought this for my 10years old son as Xmas present. We have followed all what is says on the manual, but could not get a nice looking result. The manual does not says what is the ideal temperature for it, and even how should we know when the crystal is at it's mature point? We were having nicely developing crystals, but may we waited too long, or who knows what was wrong but the crystals collapsed creating a flat container sized something. We left it at a place where the kids could not reach - safeguarding the developing crystal against crystal-breaking shaking or anything else. You just can not see through the liquid if you choose dark colour mixture! So, you don't know when it is good or bad or ready, when you should drain it or what? Even how you supposed to know if something is getting wrong? So, may a more detailed manual would avoided our not happy ending experience, but may would work better at other's houses - who knows?