About This

• Powerd by Solar Panel or Battery : Build your own marble run by battery or solar. Requires 2 AA batteries (batteries is not included in the package),Wooden 3D puzzle toy is pure entertainment meets learning.
• Educational mechanical puzzles :Our DIY Model kits are also suit for adults who love challenge.3D wooden puzzle set is designed to teach children hands on skills like coordination, physics, STEM principles .This STEM toys are suit for kids of all ages from 8 up to teens.
• Quality:Wood STEM Projects Science Experiments makes by premium basswood plywood. Perfect 3D wooden building Toys for kids ags 8-10-12-14.Non-toxic,No burr, marble track made safe from laser precision cutting.
• Perfect gift :Our Jigsaw Puzzle is great gift for a birthday or chrismas,Theyare not only toys, but also craft art, which can be placed at home as decorations. You can give it to your children, husband, couple, wife
• After Sales Service: 3-D wooden educational toys are designed to make children smarter, more imaginative and creative. Your child's safety and your satisfaction are our pursuit. For this toy, If the product does not meet your expectations, please feel free to send us a message via "Contact Seller", we will handle it for you