PLR Products stand for Private Label Rights Products and they possess a specific type of licensing. PLR allows people to purchase and use content as if they created it themselves.
With PLR Products, you can modify the content as you wish, even put your name on it as the author. You can sell it or give it away. Bottom line, once you obtain a product with PLR license, it is practically yours.
Businesses often use PLR Products to save time and money. Instead of creating content from scratch, they can buy products with PLR and customize them.