A set of plastic observation pots with a 2.4" diameter magnifier in the brightly colored push on lids. Ideal for investigating natural resources up close. Assists in helping children develop observation skills, and is great for collaborative play environments. Use the 3x magnifying lid to clearly observe the contents captured Help children connect with and learn about natural environments by using these viewers to capture samples. Children can easily remove and replace the push-on lids, enabling independent play.