Enjoy long interactive hours of play with these DIY 3D Moving Gears Wood Puzzles. Spend quality time with friends and family putting together these adorable Moving Gears Wood Puzzles. Made from safe, non-toxic and eco-friendly natural wood and exquisite laser cutting technology for perfect blend of premium quality and precision. This kit engages your brain and hands to give you a sense of accomplishment after assembling. Comes with everything necessary to assemble and instructions. Each puzzle features a different melody that pairs with its unique design. For ages 14 & over. Options: Navitas Rover, Vagabond Rover, Locomotive, Waterwheel, Pendulum Clock, Perpetual Calendar, Air Ship, Tractor, Treasure Box, Vitascope/Movie Projector, Globe, Model Shotgun, Model Guard Gun.