Before revision: A realtor lock box hanging on the doorknob of a house for sale A real-estate lock box is a padlock-shaped box that hangs around the doorknob of a house that is on the market.
After revision: generallyA realtor lock box hanging on the doorknob of a house for sale A real-estate lock box is a padlock-shaped box that hangs around the doorknob of a house that is on the market.