1. OEM and ODM order are welcomed. We have a strong design team that could design as per your request. 2. We can accept 3rd party to inspect the goods 3. Various frame and lens color can be made according to your requirements. 4. Payment Terms: T/T 30%deposit, 70% balance before shipment 5. Sample Charge: $50.00/pcs, we will refund your sample charge from the first mass order.