Trex 450 etc most 450 size heli flybarless conversion kit:
(for 4mm diameter feather shaft head )

all you will get will be the same as first pic displayed :
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easy installing step: remove the flybar etc----install washout lock---- move balls on blade-holder to the outside hole
- ---put on linkages----- put in FBL-Electronics. 
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From 03/30/2010, we will give all customer extra long ball one pair 

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Installing reference :

E-mail a friend about this item.