●Premium Rubber Material: Crafted from rubber for long-lasting durability and excellent performance. ●Versatile Compatibility: Suitable for a wide range of devices including recorders, CD-ROM players, walkmans, and DVD drives. ●Dimensions: Diameter from 26-120mm, folded lengths from 35-190mm, with a slim 1mm cross-sectional dimension. ●Ideal for Repairs: Perfect for repairing cassette players; easily replaces old, worn, or broken belts, significantly enhancing overall audio quality. ●Bulk Set: Includes 240 black mix size square-shaped belts for extensive use and replacements.