Collar-tabs of an SS officer (SS-Brigadeführer — the SS rank of General-Major or Brigadier). On both tabs are three oak leaves embroided with metal thread. Edge piping is made of a twisted silver-black cord.
How to sew collar tabs on? Put a collar tab on the collar of the service jacket so that it is not less than 5 mm from the edge. Fix it with a bright thread (which then remove) or glue. When collar tabs sit properly, they need to be sewn with a black thread by the edge.