A little heavy (yes, 7 meters of cable are felt), but the weight is reduced gradually as we place the cable in the pipes ... On reflection, I wonder if the cable is rather not 7.5 meters long (it's still a detail). Rustic but robust design, you can remove the circular cover if necessary.
The crank and handle are very ergonomic (even with gloves).
This unblocker pass through holes in the same trap and a bit narrow pipes are possible. All ferrets purchased in the past are good to go in the trash. If I had to keep only one, it would be that one.