Activity & Learning Toys

Customize what you need 7500 RPM Anti-Gravity High Precision Mechanical Gyroscope - Classic Experimental Instrument & Gift Toy Maximum speed: 7500 turns per minute. flywheel hardware: solid brass (120g). Duration: 3-5 minutes. How to play: First insert the lithium battery into the high speed starter. When the starter is deactivated, connect the gyroscope to the starter, and... Customize what you need 7500 RPM Anti-Gravity High Precision Mechanical Gyroscope - Classic Experimental Instrument & Gift Toy