Cassettes Starter Pack (3 Pack C60 + 3 Pack C90)

60 min audio cassette based on legendary SM900 formula + 90 min audio cassette based on legendary SM900 formula New cassette production - Made in France Width: 3,81mm (C60+C90) Length: 131m (C90) - Length: 87.5m (C60) Recording time: 90min max (C90) - Recording time: 60min max (C60) Clear 5-screws tabs-in cassette, with black bridge Base film: Polyester Base film thickness: 8 µm (C90) - Base film thickness: 12 µm (C60) Coating thickness: 5 µm (C90) - Coating thickness: 4,7 µm (C60) Total thickness: 13 µm (C90) - Total thickness: 16,7 µm (C60) Coercivity: 370 Oe (C60+C90) Saturation retentivity: 1480 G (C60+C90) Oxide: Fe2O3 (C60+C90)