International buyer who choose USPS international first Class shipping method should know and understand it is not 100% safe, when items shipped out from US, it will not has a tracking number. So shipment sometime delay or easy to get lost in some countries.
so if you choose the USPS international first Class shipping method, buyer have to agree with me if item lost of delay, I will not pay responsibility to your order.
For more safe shipping method, please use eBay Global Shipping Program or USPS international Priority shipping if this option is available.