All purchases of this product are samples business 1) After sales issues: The profit margin is meager, and there is no ability to bear the after-sales service. In case of dissatisfaction with the product or damage on the road, a series of problems may arise. Exchange is acceptable, but refunds or discounts are not accepted. The shipping costs incurred will be borne by the buyer, and the seller will not bear the shipping costs 2) Please provide detailed information on the shipping address, recipient's name, and phone number, especially the phone number. After the goods are shipped out, if the buyer needs to change the address or return the goods due to reasons related to the buyer, the shipping cost will be borne by the buyer themselves 3) Problem: Our store only sends' '. Large items can be shipped 4) When receiving the goods, it is necessary to count them in the presence of the staff. If there is a shortage, it is necessary to contact us in a timely manner and provide photos as proof of receipt. Any problems after signing for the goods will be borne by the recipient themselves (the security guard will sign for them, and those that are not signed for by the recipient will also be considered as signed for) 5) Due to the large shipment volume, it cannot be ruled out that there may be a shortage after placing an order. We will strictly follow your order for shipment. If there is a shortage, we will contact you by Wangwang or phone 6) Product: We adhere to physical images, but we cannot rule out color differences due to different monitors