About This

• 【Premium Wood】: Select natural 3mm boards, high quality and toughness, environmentally friendly, non-toxic, no peculiar smell, no burr assembly process safe
• 【Easy to Building】: Mechanical marble run diy puzzle is precisely cut using laser cutting, no glue or tools needed,and the pieces can be cut smoothly and perfectly blended together; Every assembly detail has detailed instructions
• 【Interactive Games】: 3D wooden puzzle contains 335 pieces of parts. It takes about 3-4 hours to assemble; It can be used as an educational toy and decompression artifact to training your logical thinking
• 【Best Gifts】: Marble run wooden puzzle for adults; Suitable for teens age 14+. Best choice for birthday gifts, family members, friends gifts, holiday gift, christmas gifts,new year gifts
• 【i-CHONY - 24 hours online】: If you have any questions, please do not hesitate to contact us. We focus on this puzzles