I've been buying popin cookin kits for my kids for years now and they are always exactly as described. This brand in general is just really good. All of the instructions are in Japanese but you can get the English instructions from scanning the QR on the package or just follow the pictures. I started buying these when my girls were 7 and 8 and they are now 13 and 14 and still love them. And honestly you can't go wrong with the price. And if you're like me they are great for homeschooling families as you can get a whole chemistry lesson from each kit!
This kit is candy flavors and a lot of fun to play around with. And the idea of two liquids creating a solid is like magic for younger kids!