Those are Gibbs and they work. The white one is older, but the both look fairly old. Are the thru wire, front loop and rear loop, brass? You need to make sure the surface of the plugs are clean before you prime. Winch like to use fire to clean them up....paint and everything. Lightly sand and prime with BIN or KILZ. The rattle cans, Krylon or others, from Homies work, but stick with the same brand if you're going to paint them with more than 1 color. Top coat is the toughest decision in my mind. 2 Ton Devcon and Envirotex are fairly cheap - look for Michaels coupons. Get a couple of acid brushes and watch the shedding fibers.