Polisher Speed Control Drive Rubber timing belt 50 teeth 10mm wide 100XLProduct Name: Timing BeltModel: 100XLMaterial: rubberColor: BlackBelt width: 10mmBelt length: 254mmNumber ofteeth: 50Number of teeth: 5.08mmWeight: 7gPackage Contents:1 x toothed beltOnly the above package content, other products are not included.Note: Light shooting 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.