As an Amazon Associate, we earn from qualifying purchases. OS Engines Needle Control Arm #61B: 91HZ | Tower Hobbies O.S. . 71705100 Attributes Brand name, Manufacturer name, ManufacturerO.S. Extra Product NameOS Engines Needle Control Arm #61B: 91HZ | Tower Hobbies extendedQty, qtyInStock0 moq, multiple1 MPN71705100 qtySourceupdateFromUrlEntry Distributor offers SellerSKUMOQIn stockMultiplePrices Tower HobbiesOSMG711011