• Use STEM Skills - engineering / junior educational set
• Builds 5 models; more for kids to explore
• 158 pieces; in different textures, colors, and shapes
• Color coded step-by-step instruction book included
• Lead-free, BPA-free, phthalate-free and washable
• Imagination training; assemble & disassemble pieces
• Improve hand-eye coordination / strengthen fine motor skills
• Tools included; small screw driver and wrench
• Ages 5+