3D wooden puzzles for adults

3D Wooden Puzzles for Adults: 330 pcs 3D Mechanical Wood Marble Run with Roller Coaster Model Kit for Brian Teaser to Build - Christmas Hobbies Craft Kits Puzzles for Adults Home Decor Gifts  NOTE: If the puzzle pieces are unstable or broken, use glue to help assemble them! UNIQUE & FUN DESIGN: Our Uplike 3D wooden puzzles for adults cleverly combines science and art to build a cool marble run model kit. This “Climbing Compass” puzzle building set is designed with a vertically upward elevator and a downward circling access track with added obstacle design. Turn the handle and the marbles glide smoothly down the track. Interestingly, this marble run roller coaster set can be assembled with the “Twin-hull Elevator” marble run puzzles for even more play to explore! HIGH QUALITY MATERIAL: Our wooden 3D puzzles for adults is made from recycled green wood, polished with abrasive paper, no need to worry about the burrs sticking to your hands! We use 3mm thickened wooden puzzles, each piece is more substantial and durable, not breaking easily. This wooden 3D puzzles mechanical is made with precision laser cutting technology and 10 marbles, no glue and extra tools are needed when assembling the wood craft diy kit, immersive experience smooth assembly process!