Descriptions :
The main grip will be damaged when heli crash due to too strong ball linkage.
This ball linkage set use speical design to provide crush zone for main grip. It will be broken easier than main grip from serious impact, thus save your main grip.
Specifications:
M2.5 linkage ball x 2
Special metail bolt x 4
Screw M2.5 x 8 x 2
