WHAT IS IT? Build a mini catapult, crossbow and bombard with the Leonardo Da Vinci inventions set of 3 stem kit for kids. Complete with an instruction booklet filled with educational content this DIY wooden building set is not only a fun toy for kids 11-13 14+ but makes an excellent resource for educators or a fun group activity for team building workshops. HOW LONG DOES IT TAKE? Each kit is easy to make in about 30 minutes. The Leonardo Da Vinci weapons 3 pack stem kit contains 1.5 hours of stem building and countless hours of fun. WHO IS IT IDEAL FOR? Suitable for ages 8 years +. Stem toys for boys ages 8-12, 12-14 toys for kids This kit makes an engaging school project or a perfect gift for children ages 10-14, whether as a birthday present, rainy day activity, nerdy gifts for men or family project. It’s also a great option for science fairs or as a unique desk toy. WHAT DO I LEARN? These mini stem toys make a great educational tool for lessons in engineering, design, simple machines, pulleys, levers, and more simple stem inventions and concepts. QUALITY AND MATERIAL? Pathfinders only makes high quality educational toys that are made from fsc natural untreated wood, non toxic and comply with and pass the ASTM toy safety standards for childrens toys. Introducing our Leonardo Da Vinci 3 pack mini model 5th centery weapons stem kit for kids. Catapult, Crossbow, Bombard model kit, a captivating blend of history stem learning, and hands on creativity! Kids learn through play best. This diy da vinci kits combines the fascination of medieval weapon toys with the joy of constructing a 3D wooden puzzle. Ideal for hobbyists and collectors this wooden catapult is not just a toy but a stem kit that provides a unique learning experience.