12 pair/sets of top quality easy to install wiper type pickups. These super easy to mount pickups use the classic wiper method and are supplied ready to mount with no assembly. - They even come complete with screws for easy installation (They can also be glued of course). Each spring plate is insulated on the upper face for direct application to any chassis metal or plastic. The finger contacts themselves are 9 carat gold plated for zero corrosion and super-smooth contact making them very special indeed. Perfect for adding to steam locos and tenders for greatly improved performance at slow speed.