Nice design but the ball part is not suitable for heavy use (it breaks). Also, the case is not convenient (the Allen keys stick in the case and are difficult to remove).

Fantastic tool and at a very good price. It is the same tool as the colored ones, just without the plastic around it. I think it's the best Allen wrench on the market, I solved a #8 screw on a motorcycle pulley by using a 1-meter extension and it solved it easily when a new Allen key failed.