Stopper Pin, V1 Transmitter Tray, DX9, DX18 (Secraft)

This is for Spektrum DX9, DX18 and Futaba 7C transmitters

For Spektrum DX9, it is well-matched with "TX-Tray (S)"

For Spektrum DX18, it is required to use "TX-Tray (L)" (** DX18 cannot be compatible with TX-Tray (S)

For Futaba 7C, it is well-matched with "TX-Tray (S)"