Meccano-Erector Junior Toolbox, Insect Mania, 4 Model Building Kit 4 BUILDING MODELS - Let your child build 1 of 4 different insect ideas (models can be built one at a time) a Dragonfly, a Cricket and a Praying Mantis and much more or kids can mix match pieces to come up with their own original design for open-ended fun. REAL WORKING PARTS - The fully built Dragonfly measures 7.5" long X 7" wide X 3" tall and features wings that really move. STEM TOY: For over a hundred years, Meccano has been promoting children's STEM (Science, Technology, Engineering, and Math) learning as they build and play . DEVELOPMENTAL BENEFITS: As kids connect pieces and discover how the building system works, theyre strengthening hand-eye coordination, fine motor skills, problem-solving skills, while exercising their imagination! For ages 5+. No batteries required. Includes: 106 Parts, 2 Real Tools, 1 plastic toolbox, 1 Instruction Sheet