A. Recorder rubber belts are designed to allow the tape to move at an appropriate speed with relatively low friction. Old or damaged cassette belts may need to be replaced as they can stretch or deteriorate over time, potentially causing mechanical issues. These cassette belts are professional and practical, suitable for most recorders. B. Features: - Color: Black - Material: Rubber - Size: 13.50X0.10X0.10cm/5.31X0.04X0.04in - The tape belts are made from rubber materials, and they are relatively durable and can support a relatively long service life. - Replacing old or broken common belts with new ones, the cassette player belt replacement is flexible, with smooth transmission and less likely to jam. - There is an adequate quantity of cassette belts to meet daily usage and replacement needs, which is beneficial for recorder maintenance. - Cassette tape drive belts can be widely used in recorders, CD video devices, and DVD drives to meet different requirements. - Recorder rubber belts have features of durability and tear resistance, allowing the recorder tapes to be played multiple times. C. Packing list: 60 x Recorder Rubber Belts(40 - 135mm)