Post Housing Assembly: replacement part for Royale Square Post with Internal Wind (#245). Made of stainless steel with 45 carbon steel worm shaft, winder held in place on both ends to keep gears aligned during winding, dipped in nickel then gold plated so will not fade or change color. Dimensions of the plate: 5-7/8"(H) x 2-5/8"(W) Courtmaster Tennis Equipment 104-3212