3D Wooden Puzzles for Adults & Kids: Electric Automatic Marble Run Model Wood Building Kit Aged 14+, Mechanical Marble Roller Coaster Birthday Gifts Hobbies for Women and Men, Stem Projects Boys Girl
NEW 3D WOODEN PUZZLE: With a new wooden marble channel design, it is built with 201 blocks and 6 marbles. The final display effect is very cool. The pure black and the original wood color track form a strong visual contrast effect, making the marble more eye-catching
ENJOY BUILDING FUN OF PUZZLE: This puzzle comes with an excellent instruction manual with large and detailed pictures, clear instructions, and easy identification of parts. Follow the step-by-step into the world of 3D wooden puzzles, which can greatly improve kids' and adults' hand-eye coordination, concentration, and patience, and feel the joy of assembling by hand
BATTERY-DRIVEN DESIGN: The marble run puzzle adopts a battery-driven design. After assembly, 2 AA batteries (not included)are installed, and the marbles start running. There are 3 different routes connecting different tracks, including spiral acceleration design, hollow passage S-turn, stair slide, etc, bringing different visual shocks
UNIQUE GIFT: This STEM puzzle kit is a great choice for adults on any special day, and also suitable for children or teenagers on birthdays or Christmas. Whether you are an experienced puzzle player or a beginner, you will find this wooden puzzle both challenging and beneficial
PRODUCT CONTAINS: The completed puzzle size is 9.4x7.13x6.42 inches. Accessories include laser cut wooden puzzle, illustrated manual, screws, screwdriver, 6 steel marbles, glue, battery motor box, Sandpaper, and Crayon. Spare parts are included to prevent accidental damage and loss
TIP: Handwell offers free replacement of damaged parts. If there is any problem, we will help to check and provide guidance. Just contact us and we will reply within 12h