STACK 'EM UP: Build towers castles and buildings knock them down then begin again! EARLY DEVELOPMENT: Develops fine motor skills and spatial relationships while teaching shapes colors and sorting. Great Montessori learning tool Manufacturered by Imagination Generation. PLAY ON THE GO: All pieces fit perfectly into included canvas carrying bag. Clean up quick take your blocks with you! NATURAL MATERIALS: Cut from solid wood sanded smooth and finished with safe water-based paints 100 PIECE MEGAPACK: Use your imagination with stacking blocks! Includes 100 wooden blocks in 5 bright colors and 9 fun shapes