This product comes with seven items of double-ended wrenches (spanners). One side of their end is open while another side has an offset ring.
Each wrench is actually a 2-in-1 bolt/nut fastening tool: use the open end for temporary fastening and the box end for final fastening.
According to the manufacturer, these wrenches have been renewed so that they fit more comfortably in your hand thanks to their slightly curved design.
This product also contains a well-designed wrench organizer.