Use for T-REX450 3G Programmable Flybarless System.
Specifications: Washer x 2 Radius arm x 2 681ZZ Bearing x 4 FMR52ZZ Bearing x 4 450FL Metal Washout Base x 1 450FL Metal control arm x 2 Socket button head screw(0#×4mm) x 4 Socket button head screw(M2x12) x 1 Socket button head screw(M2x8) x 1