Polyform A Series Ball Fender WhitePolyform A Series Ball Fender White Polyform A Series Ball Fender Throughout the world, more people rely on Polyform US A Series than all other buoys. This all purpose product, with the signature blue rope hold, has proven itself in the most adverse conditions. Thats why more fishermen use Polyform A Series than all other buoys combined. Polyform A Series Ball Fender Key Features : Even wall thickness for maximum strength and durability Polyforms