Wood Trick Galaxy Marble Run 3D Wooden Puzzles for Adults and Kids to Build - 15x12.6 - Electric Driven - Roller Coaster Wooden Model Kits for Adults and Teens to Build

NATURAL WOOD - Galaxy Marble run model is made entirely of wood. No glue, no toothpicks. Assemble 678 pieces and create a cool project! Dimensions of this wooden Marble Run are 15*12.6*14.4 inches making it one of our largest models ever released. 12 metal marbles are included PERPETUAL MOTION MACHINE - To create this marble roller coaster, we were inspired by perpetual motion of the galaxy. It’s amazing to watch the marbles move like planets and stars! Wood model kit is equipped with an electric motor powered by 4 AA batteries, 1.5V. Batteries are not included in the kit INTERACTIVE DESIGN - Developed by professional engineers, this 3D puzzle for adults looks like a small planetary model and will fascinate all DIY lovers. Parts of the mechanical puzzle can elevate, drop and rotate. Marbles move on three connected tracks and they’re really unstoppable HIGH COMPLEXITY - This wooden assembly kit makes it a real challenge and is recommended for experienced DIY fans. Taking about 6-8 hours to assemble, this model kit for adults develops perseverance & fine motor skills ENTERTAINING SCIENCE - Curiosity forms the basis for our 3D puzzles for adults. Are you excited about complicated mechanical games? WoodTrick will immerse you in the world of physics and mechanics and show you what's inside 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 joooooooy of 3D puzzles with your beloved ones