Eduard has an outstanding line of F6F Hellcat models in both Profipack and Weekend boxings and it has released photoetch frets for the Weekend line as a stand-alone item. The Weekend models have only plastic parts (as opposed to the Profipack boxes), but at times you might want to enhance the look of them by adding some photoetch, hence the Weekend Photoetch frets. Often they only cover the cockpit, the part number tends to be low, and the parts require limited bending, hence being a simplified version of the full photoetch fret of the Profipack package.
In particular, this fret is devoted to the night-fighter version of the Hellcat used during the last few years of WWII. Note that the instrument panel (IP) includes a visor/screen for the radar. In addition to an IP, you also get cockpit side detail and seatbelts, making for a very nice and busy cockpit.