For ages 5+ years. No glue or connectors required...simply stack the precision-milled, solid pine KEVA planks to create buildings, monuments and geometric forms. It's the ideal activity to help kids gain an understanding of balance and proportion, as well as an interest in architecture, building and design. A 24-page, full-color idea booklet with build-out instructions is also included. Fully compatible with our larger, 400-Plank KEVA Structures Set.