I went a little crazy during my last month of pregnancy obsessing on what my toddler could do while on maternity leave that would work as well as being in daycare full time. I stumbled upon these sensory mixes and ordered quite a few and I am so glad I did. We have the nature/forest starter kit, mermaid, transportation, ocean, and dinosaur sensory mixes. My daughter loves them, likes to keep them organized and separate, and is entertained for a good hour per kit per day. I'll definitely be ordering more.