UGEARS 3D Puzzle Mechanical Aquarium – Creative 3D Wooden Puzzles for Adults Driven by a Spring – Aquarium Wood Model Kit – Unique Wooden Puzzle – 3D Puzzles for Adults and Kids Building Kit

Underwater adventure: The mechanical aquarium is an ingenious mechanical model building 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 3D puzzles for kids and adults have been propelled by rubber band motors. This aquarium engineering kit opens a new chapter: engineering toys driven by a spring-loaded mechanism Everything is in the box: No extra tools or glue are needed to assemble our wooden puzzle pieces for crafts. Enjoy this challenging yet fascinating kid’s building project and model building kit for adults Expand your knowledge: Our 3d wooden puzzles 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 wooden models for adults to build memorable gifts for the fishkeepers in your life. Get your mechanical aquarium kit now