This is a Five Piece Metric 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 Red plastic handles
          Includes Black plastic holder that mounts with screws (included)
            on a field box or work bench.

INCLUDES: Five Ball Wrenches:
            1.5mm (2.0mm socket head)
            2.0mm (2.5mm socket head)
            2.5mm (3.0mm socket head)
            3.0mm (4.0mm socket head)
            4.0mm (5.0mm socket head)
                                                                   sdw 11/15/01
                                                                          ir/kh