The base is SL size. It cannot be used as is. The missing items are: - 2 nuts and 2 rubber covers for tightening the bail mounting screws on the back side - Bail mounting screws (as shown in the photo, one is attached to each bail, but the length is incorrect) - Board mounting screws If you get these, you should be able to ski with it. One disc cover, two cant parts, and one lift part are included as extras. One of the heel bails has been repaired with thread locker because the nut came loose once.