Vario sheets are constructed of special plastic-like material, free of chemical softeners. They have clear heat-sealed pockets and are suitable for storing a range of items including miniature sheets, FDC's, postcards, covers, blocks of four, booklets, phone cards and single stamps. They are available double sided with a black background ( Vario 'S' ) and single sided, completely clear sheets ( Vario 'C' ). This versatile system allows flexibility and creativity when putting together a collection. The overall page size measures: 216 x 280mm.