This is the Associated Factory Team Ball Hex Wrench Set.

FEATURES: Anodized aluminum handles knurled for sure grip
          Ball end engages the sockets fully, even at angles up to 25°
          Tips are replaceable by loosening set screw in handle

INCLUDES: One each 5/64" 3/32" 2.5mm wrench with reusable plastic cover

SPECS:    Length: 6.6" (167mm)