Children can see how Praying Mantises change as they grow with Insect Lore´s Praying Mantis Life Cycle Stages. These oversized, anatomically correct figures have been accurately painted and sculpted to show the four stages of Mantis development: Soft Egg Case, Hardened Egg Case, Nymphs and Adult Praying Mantis. This detailed, four-piece set is made of durable, flexible plastic and is fun and educational. Mix them up and encourage your child to place them in the correct order. Recommended for Ages 4 and up.