You’re not alone if you’ve ever pulled a strange, blade-filled gadget out of a thrift store bag and wondered:

“What in the world is this?”

Chances are, you’ve discovered an onion and vegetable slicer—a vintage (or modern) kitchen tool designed to slice onions, potatoes, cucumbers, and other vegetables quickly, safely, and evenly.

Let’s take a closer look at what it is, how it works, and why it might deserve a place in your kitchen.

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What Is an Onion and Vegetable Slicer?

An onion slicer usually looks like a small