Ant Farm Observation Set Used once. There are three colors of sand. Only the green sand has about half of the original amount unused. The other colors are slightly mixed with each other. Tweezers, Dropper (for watering) Magnifying glass The set is designed so that ants can be fed without escaping, and the food can be easily replaced. We used it at home once, and it was fun to watch the ant nest develop. Please understand that this is a used item. The set is complete, so you can use it right away.