Balloon series R are heavy-duty reinforced with rods. They are designed to provide greater strength and durability. Marking tools for the ocean, sea, river, lake, beaches, cable installation, and swimming signaling are popular among professional fishermen and are known for their durability, as well as for recreational boats used for anchoring and protection from impacts during mooring. They are suitable for any use and for all types of vessels. They are made from a single piece, which means no part is joined together to form the finished mast, they feature a consistent wall thickness, and are resistant to UV radiation.