Approximately 2.75" diameter x 2.125" tall, hard plastic see-through case, plastic and metal gyro wheel inside, rubbery grip area around circumference.
For instructional videos go to www.dynaflexpro.com/flash_site/video.html.
Note: Speed and torque are estimates.
WARNING: Choking Hazard - Small parts. Not for children under 3 years.
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