Features: 20piece mixed cassette recorder rubber belts for seamlessly compatibility and performances. The belts rom good rubber, with strong wear resistance and not easily deformed. Widely used in recorders, recorders, music Drive toy conveyors, and more. Easy installation；Each package contains 20pcs Belts, 70-100mm folded length mixed. 1.2mm wide Square belt tape drive belt suitable for most cassette tape drive. Only the rubber belt, other attachment demonstrations in the picture not included!