No.00 12mm MAGNETIC COUPLERS / COUPLINGS for Nem pockets OO Railway 5 PAIRS OO MAGNETIC COUPLINGS Non-polarized Standard gap between rolling stock 5 pair to plug in to Nem pockets. There is no A & B end will work which ever way round you place your rolling stock / locos guaranteed mating no fuss. Now new square magnets Condition is "New". Dispatched with Royal 2nd class Mail.