This is a 2mm Ball Wrench (2.5mm Socket Head) from Dubro.

FEATURES: Fits 2.5mm socket head. 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 handle.

INCLUDES: One 2mm Ball Wrench (2.5mm Socket Head).

SPECS: Length: 5-1/2" (14.0cm) ir/kh  

BOX DIMENSIONS: 1.50" W. X .50" H. X 6.50" L. BOX WEIGHT: .02 LBS.