1. The price is for a pair (2 pieces), including leaf springs and pins, boxed. Some models do not require leaf springs and pins 2. If you are not familiar with the model specifications, you can refer to the model corresponding to the product details, or take a photo of the required model and send it to customer service for confirmation. 3. This product has undergone multiple authoritative quality inspections and certifications, ensuring reliable quality. For export and wholesale customers who need a paper test report, please contact customer service to obtain it.