The e-commerce megastore Amazon is always full of surprises. While there is

no shortage of deals

happening at the retail juggernaut at any given time—sales that we work tirelessly to identify and clue you folks in on as quickly as possible—there’s also a not-so-well-known section Amazon doesn’t openly tout: Amazon Warehouse. And no, we’re not talking about brick-and-mortar Amazon fulfillment centers (although those certainly play a role); we’re talking about a semi-secret deals section on the website with heavily discounted used and returned products. If you don’t mind gently used products at significantly lower cost, you’ll want to stick around for a bit.

Have you ever opened a product you bought on Amazon and, for whatever reason, decided to return it? Well, Amazon doesn’t simply throw your returns in the trash and call it a day and instead puts them through a quality assurance check and re-lists them on its site, typically for a pretty steep discount.

The types of products vary in terms of condition—some are used to varying degrees, and some are simply open-box returns. Amazon utilizes a 20-point quality assurance test and describes its appearance, functional qualities, accessories, and packaging condition, ensuring you know exactly what type of product you’re getting: