Purchase this handcrafted wooden Marble Run set featuring a big waterwheel lifter to build your own intricate system of cogs, gears and wheels, and watch marbles racing down slides full of crazy twists and turns! This puzzle is full of elaborate mechanisms and small tricks with precise gear designs. Each gimmick creates dozens of actions that are fun to watch. Not only does this puzzle improve cognitive and motor capabilities, but it’s also a brilliant way to enhance you or your child’s understanding of STEM principles. It’ll also put visual-spatial skills and patience to the test. The lightweight model is made of 294 natural pre laser-cut wood pieces with well-fit parts and stands at an outstanding 12.79 x 8.42 x 8.97 inches upon assembly. With no glue or additional tools required, this 3D puzzle set is the perfect gift for all ages and any occasion. Also serves as attractive and unique décor for your home or office.

My son picked this out to spend his Christmas money on. Arrived quickly and he has been enjoying assembling it. He did say the pieces are difficult to put together but impossible.. Catherine. Lincoln, NE. Sat Jan 17 2026

This sphere-shaped puzzle represents a planet and its surrounding ring. Positioned snugly inside the ring, the planet looks as if it cannot be removed. It may appear that all you can do is rotate it on its axis, but is that really the case? Hold this puzzle invented by Oskar van Deventer and have an intergalactic, mind-expanding challenge!

The padlock design looks similar in size and weight to a locked one might find at the gym, but look out - there's no key or combination of numbers to solve this one! Just pick it up and you'll quickly gain an appreciation for the challenge that lies ahead - this puzzle will not open easily! The interior is comprised of two elliptical pieces, locked together tightly around the circular pieces and obstinately refusing to be released. But don't give up! This seemingly simple design may take hours to unravel - but your mission is only complete when you have put the lock back together again. The theme is "obstinacy." Designed by Korean designer JinHoo Ahn. Level 5 (out of 6) puzzles are considered difficult.

Hanayama of Japan, the maker of the world's finest cast puzzles, chooses from designs by master puzzle inventors for their challenging line of cast metal brainteaser puzzles. Hanayama is known for their extreme attention to detail, high finish quality, and creative, clever and innovative styles in six degrees of difficulty from easy to expert. Complete the first task of taking the puzzle pieces apart, then try to figure out how to get them back together and return the puzzle to its original state. Can you take it apart? Now try and put it back together!

Hanayama of Japan, the maker of the world's finest cast puzzles, chooses from designs by master puzzle inventors for their challenging line of cast metal brainteaser puzzles. Hanayama is known for their extreme attention to detail, high finish quality, and creative, clever and innovative styles in six degrees of difficulty from easy to expert. Complete the first task of taking the puzzle pieces apart, then try to figure out how to get them back together and return the puzzle to its original state. Can you take it apart? Now try and put it back together!

Hanayama of Japan, the maker of the world's finest cast puzzles, chooses from designs by master puzzle inventors for their challenging line of cast metal brainteaser puzzles. Hanayama is known for their extreme attention to detail, high finish quality, and creative, clever, and innovative styles in six degrees of difficulty from easy to expert. Complete the first task of taking the puzzle pieces apart, then try to figure out how to get them back together and return the puzzle to its original state. Can you take it apart? Now try and put it back together!