Strawbees Inventor Kit - Our Inventor kit comes with 450 pieces plus instructions for 21 activities to create several small projects including a dino head and catapult. Grab a friend and invent something amazing together. Creative Play – designed to be completely open-ended, offering possibilities as limitless as your child’s imagination. Skill Development – kids can practice problem-solving skills through building and modifying increasingly complex structures. STEAM Learning – encouragement of experimentation; kids can combine pieces to create hinges and moveable joints or combine with other materials like cardboard or twine. All materials are custom-made, durable, and reusable – finish building, disassemble, and begin a new project.