Bun Mortice/Rim Knob SetOur wooden bun collection is manufactured from solid timber and offered with Polished Brass or Polished Nickel roses. Can be matched with our plain escutcheon if a locking door is desired. Can be used with a multitude of heavy duty locks, latches & thumbturns for various uses within the home. The strength of the spring found in a heavy duty lock latch will ensure the knob returns to it's original position. We recommend using a 3", 4" or 5" latch lock.