Life Cycle Stages Sets. Oversized, anatomically accurate figures show how insects and other creatures change as they grow! Great for your budding scientist! Each figure is made of durable, flexible plastic and features details and colors specific to each insect or creature. This package contains Praying Mantis: 4 piece set. Conforms to ASTM F963. Recommended for ages 4 and up. WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 years.