ARRMA Slipper Hub Spring Set   NOTES FROM OUR TECH DEPARTMENT Product information will be provided as it becomes available. – If you need more information, use these ARRMA resources – Email: carsupport@hobbico.com Web Site: http://www.arrma-rc.com/ Phone: 217-398-8970 Postal Address: ARRMA 3002 N. APOLLO DRIVE, SUITE #1 CHAMPAIGN, IL 61822 Click here for Units of Measure Conversion Calculators