Scorpion Venom Polymeric Bow String Fluid is an advanced polymeric formula that penetrates the string to the core, conditioning and protecting individual fibers and leaving a flexible protective coating. In addition, this incredible formula revitalizes the colors of your bowstrings for a like-new look! The easy-to-use applicator gets the job done with no waste.Manufacturer model #: PBF. Advanced polymeric formula Conditions and protects Forms a flexible coating Revitalizes colors