Features and Benefits: These handy devices hold sockets and attachments neatly and orderly for maximum convenience and ready accessibility; They may be used in a tool box or chest; hang on the wall or may be carried to the job; Unique spring steel clip design holds sockets firmly in place on the rail; yet allows easy re-arrangement of clips to any desired position; Rails and socket clips are nickel plated; 17 long; with 16-1/2 clips;