There is no A & B end will work which any way round you place your rolling stock / locos guaranteed mating no fuss. Fully compatible with all Porterhouse MODELS Couplings.
Note for some rolling stock
There are also standard short (9.5mm + 9.5mm NEM to NEM)
and (11.5mm + 11.5mm NEM to NEM) available.
Condition is "New". Dispatched with Royal 2Nd class Mail.