The DJI Retractable Module for S900 is the motorized joint between the airframe and the landing gear. The right and left Retractable Modules are mirrored so it is crucial to select the module for the correct side. Part 18 is for the right - for the left use Part 17.
DJI CP.SB.000214 Specs
|Package Weight||0.7 lb|
|Box Dimensions (LxWxH)||5.2 x 3.9 x 2.9"|