First: If the item is defective, please notify us within three days of delivery.


Second: please shoot the picture of the defective item, and then send the picture to us by email so that I can submit them to our Technical Director; after she checks and agrees, we will add the news to your next order for free.


Third: if we could not Identification. All items must be returned in their original condition to qualify for a refund or exchange of goods. The buyer is responsible for all shipping costs incurred. But to compensate for the loss of customers, we will give you some more discounts on the following order through our assessment.