Redcat Racing Hard Anodized Slipper System Redcat Racing Slipper System (Hard Anodized) Genuine Redcat Racing Spare Parts Redcat Racing Part Number MPO-13 For troubleshooting and warranty information please contact a Redcat Racing Customer Service Specialist at 602-454-6445 or by emailing amazonsupport@redcatracing.com NOTE: Please read the User Manual before use.