This thread is super fine, and super strong. The breaking strength compared to other threads with the same diameter is noticeably better.
Our most recommended thread... once you try Benecchi, you'll want to use it for everything.
The diameter is 8/0 with breaking load of 1000 grams. This thread is used for all flies, but especially for medium/large size. 150 denier and spools of 100 meters.