1:120 TT Gauge Coupler extension for PIKO locomoti

As many locomotives from PIKO in TT gauge have a too short coupler holder, what leads to the long passenger wagons pushed out in the curve, I made a small fix for this. You can now take a usual Tillig or Kuehn coupler, shorten its back side a bit, insert, level and superglue it into the extender, and then easily insert it to Piko locomotive's coupler holder. This increases the space by about 3mm and solves the problem completely, at least on my PIKO ER20 locomotive pulling the Kuehn Silberlinge and Tillig Dostos even over R1 S-curves. 

The pack contains 20 pieces.