This set provides belts for the F-104G using the Mk. GQ7A ejection seat.
The F-104 also used a C2 ejection seat, and one is provided in the Hasegawa kit I used (stock #PT 20), but the seats are very different designs, and this set won’t work on the C2 seat. In general, the export versions of the F-104 used the Mk. GQ7A seat. I would consider this a “must have” since the base kit doesn’t provide any kind of harness for the GQ7A seat.