We pay attention to the quality of product and services, so we check product before sending out. 1.How to deal with, If the item is defective? We are sorry that the item is defective. We will sort it out actively but we also need your help. First: If the item is defective, please notify us within 7 days of delivery. Second: please take the picture of the item is defective, send pic to e-mail:[email protected] Pls remark the order number and item number on e-mail., so that we could feedback to our QC Director, after check and agree, we will add new one to your next order for free. Third: All items must be returned in their original condition, in order to qualify for a refund or exchange of goods. The buyer is responsible for all shipping costs incurred. But in order to compensate for the loss of customers.After evaluation, we will offer you some discount on the next order. Don't accept return/exchange if there is no quality problem. Size and material About the size: we have size chart on site, please take it for reference before shopping . About material: we have material description and real pic on site, please check before shopping, if more information is needed, pls contact our service.