Purchase considerations This product is original and genuine, and power tool parts are technical goods that may cause certain risks after installation Due to wear and tear, accessory products are not refundable or exchangeable once used. Please make sure to determine the following points before purchasing: (Customer service recommendations are for reference only) 1. Is the machine genuine. 2. The brand and model of the machine. 3. Some machines have old and new models, and accessories may not be universal. After receiving the accessories, please ensure that they are installed by professional technicians. Note: Due to the fact that the manufacturer may change the product packaging, origin, or some attachments without any prior notice, our company cannot guarantee that the goods received by.