3D Wooden Interlocking Puzzle - Luban Lock Tangram Educational Toy - STEM Learning Brain Game for All Ages

Unlock Ancient Wisdom with Our Kongming/Luban Lock Puzzle! 🧩✨

Experience the fascinating 1,000-year-old Chinese puzzle tradition with our premium wooden Kongming Lock! This 3D interlocking brain teaser combines ancient craftsmanship with modern STEM education, offering hours of challenging fun for puzzle enthusiasts of all ages.

🔐 Why Puzzle Lovers Choose This:
✔ Authentic Cultural Artifact - Based on Zhuge Liang's legendary invention
✔ Premium Quality - Smooth sanded hardwood, safe & splinter-free
✔ Brain-Boosting Benefits - Enhances spatial reasoning & problem-solving skills
✔ Multiple Difficulty Levels - From beginner to expert challenges
✔ Perfect Gift Choice - Great for birthdays, holidays & educational purposes

Includes:

• 6-12 piece interlocking wooden puzzle set (varies by model)

• Step-by-step solution guide

• Historical information card

Ideal For:
• STEM classroom activities
• Family game night challenges
• Office desk brain teasers
• Traditional Chinese culture enthusiasts
• Alzheimer's prevention exercises

Warning: Suitable for ages 8+ due to small parts

Relive ancient Chinese wisdom while sharpening your mind! Click [Add to Cart] to begin your puzzle journey today!

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.