KIt contains : PCB with the 4 SMD load resistors pre-soldered and 2 SMD 0 ohm resistors for the attenuator sections (0dB), 2 SMA female SMA edge connectors, 2 FT37-43 toroid, 1.2m 0.4mm lacker wire, HC49 crystal socket for crystal under test, 16 pin header strip, 3 jumpters, 3D printed plate with 6 pins, 2 3D printed T37 holders.