OTOTEC Cassette Player Drive Belt Compatible with Sony WM-EX88 WM-FX503 WM-EX811 WM-EX911 WM-EX77 WM-EX777

["- Compatibility: Compatible with Sony WM-EX88 WM-FX503 WM-EX811 WM-EX911 WM-EX77 WM-EX777. Check the exact model printing before purchase to ensure proper fit.","- Stable Playback: Helps stabilize tape transport and speed for clearer music and voice playback, reducing wow and flutter during daily use.","- Easy Maintenance: Simple installation with basic tools—remove the worn belt, clean pulleys, and route the new belt on the motor and capstan.","- Purpose-Built: For repairing and maintaining vintage portable cassette players used for commuting, study, or digitizing tapes; not for CD or MD units.","- Package & Care: Includes 1 black rubber belt. Store in a cool dry place away from oil to maintain elasticity."]