1. Product Features - The aperture is approximately 5.7 millimeters. - The distance between the mounting holes (from center - to - center) is approximately 78 millimeters. - It is a simple recoil hand - pull starter suitable for 47cc and 49cc mini - motorcycles, all - terrain vehicles, four - wheel off - road motorcycles, pocket bikes, and scooters. 2. Scope of Application It is suitable for mini - motorcycles, children's all - terrain vehicles, and four - wheel vehicles equipped with 47cc and 49cc two - stroke engines. 3. Product Specifications - Color: Black - Aperture: 5.7 millimeters - Weight: 310 grams - Dimensions: 15×20×5 centimeters 4. Packaging List One 49cc hand - pull recoil starter. Our products are made of the highest - quality materials, aiming to provide you with the best possible user experience. We strive to ship the order within three days after purchase, and the estimated delivery time is 8 - 15 days. When shopping, please pay attention to the product's size specifications to ensure they meet your needs. In the title and description, we have provided detailed information about the product, including its features and specifications. We hope you are completely satisfied with your purchased product. Therefore, if you have any questions or concerns, please feel free to contact us. We are always here to help and will do our best to assist you. Thank you for choosing our products. We hope you like them.