Best Seller | Toysmith Project Blueprint Maxwell s Wheel Science Toys - Novelty Desk D?cor Sensory Fidget Gift Project Blueprint s Maxwell s Wheel by Toysmith is a 10 tall classic kinetic sculpture transforms potential energy into a yo-yo like motion using an oscillating flywheel that is both fidget-friendly and desktop fashionable. This fidget sensory... more | | $34.99 $29.99 FREE shipping go to store |