Finishing off the look of the RC10 is simple with JConcepts. Aluminum wing buttons are a simple item which locks the wing into position on the RC10. Stock wing mounts, made of plastic, can strip easily while trying to tighten the assembly. With the Finnisher aluminum wing buttons and 4-40 hardware, bearing down on the set-screw helps maintain a more stabile position during racing. The stylish wing buttons include a pass-through hole with chamfered edges for a smoother build.