This is a Six Piece Standard Ball Wrench Set with Holder from Dubro.

FEATURES: The perfect tool for getting at those hard to reach places.
          Ball wrenches make it possible to turn socket head screws or bolts
            from any angle.
          Transparent Yellow plastic handles
          Includes Black plastic holder that mounts with screws (included)
            on a field box or work bench.

INCLUDES: Six Ball Wrenches:
            .050
            5/64" (2-56 socket head)
            3/32" (4-40 socket head)
            7/64" (6-32 socket head)
            9/64" (8-32 socket head)
            5/32" (10-32 socket head)
                                                                   sdw 11/15/01
                                                                          ir/kh