In 1989, we first introduced the patented LD (low drag) Buoy to the commercial fishing industry. Hauling in a 700-lb crab pot in 30-ft seas is the most dangerous job in the world. That's why we created a buoy designed for faster, safer pickups, easing strain on both crew and gear. Polyform's LD Series is the best option for any application where a buoy is dragged or brought in and out of the water regularly. It is distinguished as the #1 buoy used in the commercial crabbing and fishing industries today, outselling all other dragged buoys combined.