How does cod work?

Hi everyone,

 

I am new to selling on ebay and I was just wondering how COD works in terms of receiving the payment?

 

I have an item up for auction along with the postage estimate, I understand how that all works but a buyer has messaged me wondering if I wanted COD? I had to google it to see what it was honestly, that's how new I am. But i'm a bit stuck on how it all works.

 

If i post the item out to the buyer with the COD method, how do i recieve the payment? Through paypal? Or?

 

Also, anyone here had an experience with COD? Was it good/bad? Any advice to ensure I don't get scammed?

 

Thanks,

Rebecca