• National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set by BlueMarbleToys
  • National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set - Image 2
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  • National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set - Image 4
  • National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set - Image 5
  • National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set - Image 6
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BlueMarbleToys

National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set

National Geographic Jumbo Cardboard Building Blocks 30-Piece Castle Set

$49.48 USD
$49.48 USD
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About This

  • BUILD YOUR OWN CASTLE - The jumbo building blocks in this kit sport a castle theme, so kids can build their very own castle play house! Kids can let their creativity shine as they create unique, custom castles with ease!
  • IGNITE IMAGINATION & CREATIVITY - With their detailed castle graphics, these premium jumbo blocks encourage imaginative play more than plain, brick-themed blocks. Kids can let their creativity shine as they create unique, custom playhouses with ease!
  • START-UP VIDEO & EASY-TO-FOLLOW INSTRUCTIONS - The illustrated instructions include a QR code to a helpful video on getting started, plus tips throughout to make things even easier for kids as they design and build their playhouse.
  • AWESOME ACCESSORIES – This set includes a drawbridge and two crowns in addition to the 27 jumbo blocks for even more creative fun! Kids can use their imaginations and rule their new kingdom just like real royalty!
  • 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!
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Why Kids & Parents Love This

This Montessori-inspired toy encourages hands-on learning and sensory exploration.

Made with eco-friendly, non-toxic materials safe for little hands.

Perfect for building fine motor skills and independent play.

  • Safe & Eco-Friendly

    Made with non-toxic, premium natural wood.

  • Encourages Motor Skills

    Perfect for stacking, sorting, and hand–eye coordination.

  • Supports Independent Play

    Designed to grow confidence through open-ended play.

Play Ideas for Little Hands

• Stack by color or size

• Sort the rings to learn early math concepts

• Create imaginative stories using the shapes

• Combine with other Montessori items for extended play

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Safe & Eco-Friendly

Made with non-toxic, baby-safe materials for gentle, everyday play.

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Encourages Motor Skills

Supports stacking, sorting, and grasping to build fine motor skills.

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Supports Independent Play

Designed so little ones can explore on their own, at their own pace.

  • ⭐⭐⭐⭐⭐

    “Perfect for my toddler’s hands!”

    The pieces are smooth, lightweight, and easy to grasp. My daughter asks for this set every morning — she’s obsessed!

    – Mia P.

  • ⭐⭐⭐⭐⭐

    “High-quality and beautifully made.”

    The natural wood finish is stunning, and I love that it’s non-toxic. Great for introducing early motor skills.

    – Harper L.

  • ⭐⭐⭐⭐⭐

    “Encourages independent play so well.”

    My little one spends solid 20–30 minutes stacking, sorting, and exploring textures. Great for quiet playtime.

    – Olivia R.

Frequently Asked Questions

Yes — all EduBloom toys use non-toxic, baby-safe materials.

Each product lists a recommended age based on developmental stages.

Wipe with a damp cloth. Wooden parts should not be soaked.

Contact us with photos and we’ll assist quickly.