Floatlines are specially made to create the buoyancy in the nets. The buoancy makes sure, that the nets can stand straight up under water, or float by the waterline.
There are different types of buoyancy, and it depends on which fish you want to catch.
Hau line - multi
Floatline type OY
Hau line no. 5.0 loose in box, boxes of 400 mts