UGEARS Mechanical Aquarium 3D Puzzles Decorative Aquarium Wooden Puzzle Driven by a Spring - Self-Assembly Gear 3D Wooden Puzzles for Adults - Wooden Model Kits for Adults Teens

Underwater adventure: The mechanical aquarium is an ingenious mechanical model kit of a saltwater fishbowl with two pet tropical fish chasing each other around in a forest of macroalgae fronds that shelter a tiny seahorse Unique mechanical action: Up to now, UGEARS science kits and 3D puzzles for adults have been propelled by rubber band motors. This aquarium wooden puzzle set opens a new chapter: mechanical models driven by a spring-loaded mechanism Everything is in the box: No extra tools or glue are needed to assemble our DIY kits for adults. Enjoy this challenging yet fascinating wooden construction kit and engineering gift Expand your knowledge: Our building kits for adults showcase the action and interplay of drive gears and driven gears, the function of pendulums, and how spring-action mechanisms work Exquisite artifact: Choose UGEARS model kits for adults to build memorable gifts for the fishkeepers in your life. Get your mechanical aquarium kit now, Manufacturer: UGEARS