NATIONAL GEOGRAPHIC Kids Jumbo Cardboard Building Blocks – 40 Heavy-Duty Bricks in 3 Sizes, Build & Learn with Game Spinner & Activity Cards for Kids 3+, Indoor Play Construction Toy for STEM Learning

BUILD YOUR OWN CREATIONS – With colorful red, blue, yellow, and green bricks in 3 sizes, kids can build towers, forts, tunnels, and more! These jumbo cardboard blocks are perfect for open-ended creative play.

DURABLE AND EASY TO BUILD – Blocks hold together securely when assembled and are made from heavy-duty cardboard that’s lightweight and safe for kids. They’re fun to stack, build, and rebuild again and again.

FUN FOR FAMILY & FRIENDS – Add a playful twist with the included game spinner! It’s a great way to inspire silly challenges and group building fun for parties or family game night.

LEARN WHILE YOU PLAY – Activity cards introduce educational prompts that support skills in engineering, math, and storytelling—turning screen-free play into an engaging learning experience.

EVERYTHING INCLUDED – This 40-piece kit includes jumbo cardboard blocks in 3 sizes, a game spinner, illustrated activity cards, and full instructions for fast setup and endless fun!

AWARD-WINNING PRODUCTS – Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!