• Wood Marble Run Blocks Play Set: This Marble run model is made entirely of wood. The set includes a good variety of wooden blocks and tracks, 13 metal marbles, 10 colored marbles and a basic builder manual book
• Perpetual Motion Machine: To create this marble roller coaster, we were inspired by the perpetual motion of the galaxy. It’s amazing to watch the marbles move like planets and stars! The wood model kit is equipped with an electric motor powered by 3 AA batteries, 1.5V. Batteries are not included in the kit
• Easy To Assembly: The wooden puzzles marble run combination set promises a hassle-free assembly process that's swift and tool-free. Whether a seasoned builder or starting, you can effortlessly complete this 3D puzzle grand gift pack in 1-2 hours
• Mechanical Gear: This 3d wooden puzzle uses precision laser cutting of high-quality plywood, which is safe and eco-friendly. Each piece of the puzzle is crafted with precision for a tight and secure fit, making it a fun challenge and a beautiful piece of art decoration when completed
• Perfect Gift To All: Our wooden models for adults to build is a nice choice for Christmas holidays, Father’s Day, Valentine’s, Back-to-School and others. Share the real engineering joy of 3D puzzles with your beloved ones