Package includes: 3 pcs 36-tooth electric vehicle gear, 1 pc clutch Made of high-quality materials, durable and practical Electric bicycle 36T gear + clutch for Bafang motor Nylon gear Thickness: 12 mm, Steel gear Thickness: 11 mm (optional) Clutch diameter: 70 mm, Outer diameter: 38 mm Package includes: 3 pcs gears 1 pc clutch Note: 1. Please allow a slight error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping If you have any questions, concerns, or need further information, please do not hesitate to contact us at any time. Our team is dedicated to providing you with support and answering any questions you may have. Your satisfaction is our ultimate goal. We look forward to providing you with the highest quality products and service! Thank you for your support.