Polyform A Series Ball Fender Cobalt BlueThroughout the world, more people rely on our 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. Even wall thickness for maximum strength and durability Polyforms unique vinyl valve system Excellent choice for a rafting fender Offered in brilliant, high visibility red