OMPHOBBY M4 Helicopter Tail Linkage Rod Set(Black)OSHM4039B Sale! from 697 /per Qty. Sold Out This is a replacement tail linkage rod set for the OMPHOBBY M4 Helicopters Contents Tail Linkage Rod Φ3*Φ1.5 509mm-1Control Rod Joint-24.5 Universal Ball Joint-2 Qty available:0 SKU:OSHM4039