After-sale Service:1. The replacement will be send with next order.2. Choose the cheapest and safest shipping company.3. Track the order until you get the goods.Extra Service:1. MOQ 5 sets; Sample order is available.2. OEM 300sets;free customized package.3. Provide designed package depends on your needs.Payment:1.Payment: Paypal; Western Union; T/T2.Delivery time: Sample order within 3 days; bulk order within 7-10days.Any question, feel free to contact with me and I will reply you ASAP.