Blue Marble National Geographic Kids Jumbo Cardboard Blocks – 40 Heavy-Duty Bricks in 3 Sizes, Spinner & Activity Cards

Blue Marble presents National Geographic Kids Jumbo Cardboard Blocks, a versatile indoor construction kit designed for open-ended play and early STEM exploration. This 40-piece set features bright red, blue, yellow, and green jumbo bricks in three sizes, inviting kids to imagine, stack, and reconfigure with ease.

Built for repeated sessions, the blocks are made from heavy-duty cardboard that feels sturdy yet lightweight in little hands. They lock securely when assembled, then come apart with a gentle lift, making it easy for kids to rebuild dozens of times in a single afternoon. The kit is built for indoor use and is simple to set up, so play can start quickly after a quick read of the illustrated instructions.

Open-ended construction for imaginative play

• Build towers, forts, tunnels, and more using colorful bricks of three sizes
• Experiment with balance and structure as designs grow taller
• Pair pieces to create arched entrances, bridges, and cozy nooks
• Move the blocks around to remix scenes during playtime

Learning prompts and family friendly features

• Activity cards offer prompts that support engineering, math, and storytelling skills
• The included game spinner introduces playful challenges for group play
• Everything you need is in the kit, including full setup instructions
• The award winning design highlights Blue Marble commitment to education and imagination

Designed to be a practical, screen-free option for indoor play, this set invites independent exploration and collaborative projects with siblings or friends. The kit ships with a U.S. support team to help ensure a smooth and enjoyable experience, reflecting Blue Marble and National Geographic’s focus on reliability and kid-friendly design.