Features: brand new and high quality Made out of a fiberglass reinforced rubber which mean it is chemically resistant, harder wearing and does not stretch whilst under stress. Imbue with a nylon fabric which coats the compound of the belt and acts as both a wear resistant surfaces (protecting the teeth) and provides a superior grip. A uniquely designed tooth profile distributes strain across the entire belt allowing the belt to handle greater loads. Very high cost performance, with strong, durable, not easy to lose step and so on. Greatly improve the accuracy, save-time and convenient for operation. Specifications: Material:Rubber Length:2m/5m Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Synchronous Belt