T-169N is a nickel plated steel, spring loaded trunk lock. This style of lock is commonly found on foot lockers as well as vintage trunks and suitcases. On larger trunks, two locks may be used, one on each side of the lid front. Another option for larger trunks is for a draw bolt or latch to be located on either end of the lid front and the trunk lock in the center. If you are looking for added security, there is a loop with which to add a padlock. Overall measurements are 4 3/4" high by 3 5/8" wide. Flush mounted. Includes two keys. Mounting hardware not included.