The Greenwald Industries Tubular Service Door or Machine Top Key (GR100) is a genuine OEM replacement key. Make sure to measure your door's backset, cross bore and thickness to ensure a proper fit. This key is specifically designed for use in compatible Money Boxes with the following model numbers: 74-1027-31-GR100, 74-1047-31-GR100, 87-1235-31-GR100. It is only the key, lock is sold separately. The cosmetic differences in the handle do not affect functionality. The product may vary from the image shown. The key, known as a money box key on the OEM website, is actually designed for a CAM, 2X CAM, or Stud 1.81” type lock mechanism, not for opening the money box itself. It has dimensions of 1.50 x 0.75 x 0.37 inches. Please consult your owner’s manual for the correct key number.