S1: Nothing is free.S2: Please pay the sample charge.S3: Samples will be sent free of charge.S4: We can not send you free samples.S5: Both the samples and postage are free.S6: We can give you two free samples.S7: Please pay the sample charge and postage in advance.S8: The sample charge is 50% more than the unit price. And we'll deduct the sample charge from your order.