Dromida Bearing Set Ominus Quadcopter FEATURES: Installs on each motor shaft at bottom of main frame, and between main frame and motor gear INCLUDES: Eight 3x6x2mm Ball Bearings, key #3 jxs 09/23/14 ir/jxs INCLUDES: Eight 3x6x2mm Ball Bearings, key #3 jxs 09/23/14 ir/jxs