WLtoys V977 Upgraded Parts 2.5mm Square Tail Boom
There are solid and hollow tail booms:
B is hollow,A is solid.
With solid tail boom, with rubber covered wire, heat shrinkable tube set with 3 mm.
Item Name: Tail Boom
Longer than the original tail boom about 2mm,lock tail better!
Usage: Spare parts for WLtoys V977 RC Helicopter
2 x Tail Booms