-This special ESP blend of PVA string has an extra loose weave which allows water to penetrate between the filaments ensuring rapid meltdown without residue. ESP PVA String strands can be further separated into finer lengths for even faster dispersal. To cover all requirements this ESP PVA String is available in: 3 Ply Fine: Best suited to short range and very low water temperatures. 6 Ply Medium: A good all round string for varying water temperatures. Capable of supporting 3 to 4 baits for casting up to 70 yards. 9 Ply Heavy: Extremely strong. Will allow distance casting with very heavy stringers.