Generally speaking, free offer USD20 or below value in total, if exceeding it, a 1.5 times of whole payment is needed.

We don't prepay for the shipping cost (express/airfreight/freight) of the anyway to sending samples, it should be paid by customer;
if customer has FedEX/UPS/DHL/TNT account number to import, please use the proper courier, samples will be shipped as a collect basis, i.e. freight to be collected.

Factory will only arrange the sample request till the payment's arrival if samples are charged, so the lead time is calculated according to the payment receipt date.

Usual lead time: 7 working days (sample with material ready)

If QC evidence shows that our samples are not pass the testing due to our reason, we will bear the 2nd samples fee and freight for customer re-testing.

Any of request which is asking to prepay the shipping cost for the first free samples delivery is not acceptable.

We make samples as per the buyer's requirement. As we know, we have different customer levels, some of them need this, and other of them need that.
If the buyer did not state clearly about the requirement when requesting a sample, we will randomly to make company default version for testing.

Sample fee could be returned back when your order quantity reach some certain quantity order.