These tracks can fit a wide variety of vehicles, from Panzer III or IV to StuG III, Nashorn, Hummel or Bergepanzer.
They are 3D printed and each set has 230 links, leaving a good number of spares.
PT-35019 WWII German Pz.III/IV 40cm Normal Tracks Middle Pattern B
PT-35021 WWII German Pz.III/IV 40cm Normal Tracks Late Pattern C
PT-35012 WWII German Pz.III/IV Winterketten Tracks Pattern B
PT-35013 WWII German Pz.III/IV Winterketten Tracks Pattern C