Mail-in rebate

I am not sure what mail-in rebate is beyond that is saves you money. Could someone please explain?

 

You literally request your rebate via mail.

When you buy something with a mail in rebate, you pay full price for it.

When you get your item, there will either be a card packaged with it, or you will get an email about it.

You cut out your UPC from the box of your item, fill out a form, and send it in.

Then, 2-24 weeks later you receive a gift card in the mail for the amount of the rebate.

 

Be warned, if you do this, you can not return it.