Fling small objects across your room as Leonado da Vinci intended. This kit brings his sketches into reality. Everything you need to build is included: Precut wood pieces and easy to follow instructions. 10x7.5x2" box. Ages 14 + Hands-on learning at its best. Building models decreases stress, increases focus, organization, spatial and fine motor skills. A great gift that will bring all ages together for a project. Back to school DIY kit, engineering kit, wooden craft kit. A great item for many retail sites: childrens museum, toy store, hobby store, science museum store.