OO MAGNETIC PIVOTING COUPLINGS Non-polarized Standard gap between rolling stock 5 pair to replace the screw on DAPOL coupling. +2mm LONGER THAN PORTERHOUSE STANDARD MAGNETIC COUPLING. There is no A & B end will work which ever way round you place your rolling stock / locos guaranteed mating no fuss. Condition is "New". Dispatched with Royal 2nd class Mail.