【Master Key for Generation III Lockers】Check with us on your locker version prior to purchase. When in doubt message us to confirm cs at FixtureDisplays calm
【Check Key Profile to Ensure Fit】Examine your existing master key to listing picture, make sure they are identical in how teeth are cut
【Product Video】Video Instructions link: https://youtu.be/MuE_sT9jZ9I. You can also search "15252- 3 master key 2 tier adminstration key fixturedisplays" on youtube to locate the video. You can also download video by following this link: http://www.fixturedisplays.com/video/15252- 3.AVI