This tool case here, although certainly not an absolute professional quality, but it holds at least without deforming even at slightly heavier bolts to be loosened state.
So for every day again and again necessary work (battery change, E- devices disassemble, tighten small screws or loose, etc.) quite well suited and of sufficient stability.
Added to this is the really very moderate price!
So - full recommendation (for the handyman in average conditions) and thus 5 Stars!