KODEX Refill Spool of Meltz PVA 20mm Continuous 6m 6m refill spool of Meltz continuous PVA, which has been developed and field-tested for over 12 months to ensure the mesh has the perfect melt-down rate. It leaves virtually no residue, even where the knot is made. Kodex also made sure that the mesh is fine micro, smooth to the touch and anti-ladder. Available in both narrow (20mm) and wide (40mm) diameters.