Durable and easy to use. Suitable for small surf electric scooters and similar applications. Replacement Drive Belt HTD 384-12. Durable and easy to use. Specification: Teeth number: 128 Belt length: 384mm (approximately 15.1 inches) Distance between two adjacent belt teeth: 3mm (approximately 0.11 inches) Width of belt: 12mm (approximately 0.47 inches) Material: Plastic Color: Black How to Select Drive Belt: 1. Check the numbers and letters on the old belt. 2. If you cannot find the numbers and letters printed on the belt: a) Measure the length of the belt loop. b) Measure the distance between the tops of two adjacent belt teeth. c) Measure the width of the belt. Package: 3 x Drive Belt The package includes only the items listed above; other products are not included. Note: Lighting and display differences may cause the color of the item in the picture to vary slightly from the actual product. Measurement error allowance is +/- 1-3cm.