Superior wear resistance and the right traction but without deformation. Premium both the duration and the ability to absorb vibrations. both sides. Don'for t worry about the mounting direction. Not stretch again, while reducing motor stain. Widely used in Recorders, CD-ROM video machines,,DVD Material: Rubber Color: Black Size: Folded(diameter) Folded 190 mm (diameter 121) Folded 200 mm (diameter 128) Folded 235 mm (diameter 150) Folded 270 mm (diameter 172) Folded 280 mm (diameter 178) Folded 284 mm (diameter 181) Folded 298 mm (diameter 190) Folded 306 mm (diameter 195) Folded 323 mm (diameter 206) Folded 471 mm (diameter 300) Package Contents: 10x Gramophone belt Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.