First impression: Good workmanship of the bar, no burrs lies comfortably in the hand (even after long workouts no pressure points on the palms), weights can change slightly and tighten.
Negative only falls on actually that certain training movements, in which the rod slightly rotates along the screw to 5-10 movements are loose and rattling the windows slightly.
Disturbs something. But it is not so tragic when tightening the screws again after a unit.
I still have 2 dumbbells from the same manufacturer without those loose screws .....
Recommended for this price definitely