Possibly the most comprehensive block set ever. A brilliant system of solid wood blocks for building spatial, creative, and problem-solving skills. 70 heirloom quality pieces that work with each other in more than 20 stage-based activities. Years of learning through play, designed by child development experts to meet every stage of your child's growth starting at 18 months. Designed to promote spatial awareness, cognitive and problem-solving skills, motor skill development and encourage pretend play. Learn how things stack and balance, developing spatial awareness of size and shape and understanding physical properties of objects. Match block of different shapes and colors to each other to learn early concepts in categorization. Pattern play with blocks of different shapes and color encourages fine motor dexterity and hand eye coordination. Use modular features to create early experiments in physics. Play with concepts like cause and effect, force, velocity and gravity. Plan ahead to reach a goal: assemble a car in a sequence of steps. Blocks fit together with the included storage box to transform into a pull car! Build cities, act out stories and create a world of wonder in open-ended play. Crafted using FSC-certified, sustainably harvested, solid wood.