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. Insect Lore gives learners of all ages a glimpse into the fascinating world of insect metamorphosis and ignites a love of scientific discovery. Our immersive projects are the perfect alternative to digital screens and encourage kids to focus on nature and real world science.