Sprocket shaft, with 2 sprockets mounted, shoulder screw/nut included. If purchasing for a vertical antenna please disclose the model in the memo section at checkout.
All new antennas ordered with an OptimizIR 2.0 controller will be shipped with a loaner SDA 100 until the OptimizIR 2.0 is ready to ship in 8 weeks from 8/15/23.