AMB20 Transponder Box Xray T3

We still use the good old AMB20 Transponders in our R/C car club. Because this transponder is much more bigger than the new ones, I decide to give it a good place in the front of my car. This place it is safe and the transponder is pretty good fixed.
There two types of holder. One for the T3 and one for the T4 XRay car. Think should also fit to other car types.