This junior construction toy is the top-selling set in the U.S. market. It includes 80 durable blocks in 10 distinct shapes and 9 bright colors. The Big Building Bag features an easy-to-carry design with large pieces sized for young children's hands. The set encourages creative play and color recognition as toddlers construct various designs. All components are compatible with other major building block brands, allowing for expanded play possibilities. Recommended for ages 1+, these oversized blocks help develop fine motor skills, spatial awareness, and imaginative thinking through hands-on building activities.