1.Can sample cost be refund? Yes, we can refund the sample cost when you place bulk order for this sample 2.Can i get a discount for bulk purchase? Yes, we will give discount for bulk purchase, and bigger order, bigger discount. 3.How to contact with ua? You can choose your interested products and send inquiry to us via email. Call us without any hesitation. 4.What's your main markets? 60% United state of japan,25%America15% others. 5.Why the price is different from your shop? for reference onlyThe final price will be different from current price of raw materials, exchange rate, and your order quantity. Hope you can understand us. Thanks!Polarized sunglasses can let children feel at ease to enjoy the sun, is the eyes in the strong light to get better regulation, effectively prevent ultraviolet light, strong light. Even the most mischievous child is not afraid of violent distortion. Soft elastic frame, not easy to break. When bent, it bounces back to its original shape and is durable. It can block strong light, filter out dazzling light, restore the true sense of painting, protect eyes at the same time, the field of vision is clearer.This sunglass designs for children only, round frame water drill appearance, lightsome and comfortable, do not oppress the facial features that the child is developing, let the child wear rise relaxed freely. The frame that has design feeling, the child also has fashion. The environment-friendly material is safe to wear, the flexible component is light and comfortable, and the polarized lens has a clear vision. Choose us is your most correct choice, you are welcome to come to the factory inspection. If there is any problem in the transaction process, we will solve it for you as soon as possible, customer first.