Big blocks for big ideas! Little architects will love building ramps and cities with these oversized building blocks for toddlers. Children can construct buildings, roadways, multi-level homes, and more with the ECR4Kids 18-piece hollow wooden block set. Made of durable hardwood, these blocks have rounded edges and a natural smooth finish for safety. These wooden stacking toys come in assorted shapes and sizes based on a unit measurement of 3.9' for uniformity of measure, to make building and stacking easy. The blocks boast smooth edges and corners with a light, natural wood hue. These building blocks are truly beautiful. ECR4Kids wooden toys are GREENGUARD [GOLD] Certified because we believe kids deserve the very best. Products that have achieved GREENGUARD certification are scientifically proven to meet some of the world’s most rigorous third-party chemical emissions standards. Our building blocks are safety tested to ensure safe play and Consumer Product Safety Improvement Act (CPSIA) compliance. We adhere to strict safety regulations to ensure your child’s well-being. ECR4Kids is committed to enhancing education in the classroom and at home. We specialize in a wide range of high-quality educational furniture and supplies. We’re your partner for pre-K and beyond.