There are no negatives here, we absolutely love Orbeez, and your toddler or child will too!
We are not sure if Orbeez qualify as a toy or not, but they are awesome! We have had both the dry ones where you simply add water and the prepackaged ones like you can see in the video. They are bright and vivid in color – loads of slippery fun – and a great value if you buy the dry ones. A couple fun ideas for Orbeez play are:
Fill a Kiddie Pool with them and play like crazy for hours! We did this during a hot summer day and it was almost impossible to get Kimiko out of the pool! One small piece of advice, these dry up to nearly the original size -- and will re-expand when wet again! We made the mistake of dumping them out on the ground after playing, so now whenever it rains we find Orbeez popping up around the yard! It is interesting and fun, but I would not do it again.
Mix them with slime! Be advised that when you do this, the slime gets really sticky!