This is replacement Plastic Hardware Set for the Great Planes ElectriFly E-Performance Series Reactor 3D, GPMA1540. FEATURES: Plastic construction, Black in color Replaces worn or damaged plastic hardware pieces INCLUDES: Five parts trees with single side servo arms, double side servo arms, control horns, control horn back plates, adjustable clevises and various other plastic hardware parts used in this model REQUIRES: Removal from parts tree and installation following the model manual kpm01/03/2007 ir/jxs