Build, Stack & Imagine: Kids explore endless possibilities by stacking, balancing, and knocking down colorful wood blocks while constructing towers, bridges, and imaginative structures Colorful Wooden Blocks Set: Includes 100 lightweight, yet durable, solid wood blocks in 4 colors and 9 classic shapes; pieces store neatly in the included sturdy cardboard toy box with carrying handle Montessori Learning Toys: Strengthen fine motor skills, hand-eye coordination & shape recognition, with preschool learning activities to foster early math concepts like counting, sorting & comparing Educational Toys for Any Occasion: When buying a birthday gift & holiday gifts for kids, or rewarding little milestones, celebrate the moments that matter with Melissa and Doug toys for boys & girls Wholesome Play for 35+ Years: Melissa & Doug inspires kid-powered play with its learning toys for kids, baby & toddler toys, puzzles, games, building toys & stuffed animals, dolls, & even a doll house; This product is certified by the Forest Stewardship Council. Please note that FSC certification applies to new inventory only (FSC C156584)