Product Details: Assembled size:175*85*100mm; Package Size:237*175*40.5mm; Wood piece: 157-203pcs; Material:Laser-cutting plywood; Recommened ages:8+; Package Include: Laser Cutting Plywood; English instruction to follow; Solar Motor Set,Screwdriver,Steel Shaft,etc; Features: Unique design - recreate the Space Project Vehicles Solar Powered, no deed for battery Laser Cutting: Easy to remove the pieces from the wooden sheets; Exquisite Box packaging: Presentable Gift for your loved ones; QA:How to make it move: Expose the Solarmotor to the sunlight; Fix the gears according to the instructions; Robotime offers a world class first 3-D Assembly Puzzle Technology. Robotime now makes over 400 DIY wooden puzzle items. Our Goal is to build DIY fun for our customers. For this Mechanical Clockwork Model Series, You will enter into an Amazing World and enjoy Mechanical DIY Fun. Boys, Teenagers, or Adults will Fall in Love with it. You can also have a sense of accomplishment when you complete this Model Kits. Help Children Exercise their Hand-eye Cooperation, Improve Impatience and help them focus on one thing, much better than a phone or a video game. If you love puzzles, DIY project, love dollhouse, or any other craft, construction kits, these will be project waiting for you to complete.