# Overview and Features
Do you need a single pulley? A double? A triple? You can have 1,323 pulleys, or even more, all by stacking a single part! Our new stackable pulleys allow you to have as many (or as little) pulleys as you’d like by stacking a single part over and over and over. The stackable pulleys are designed to fit together seamlessly, and are sized such that the outer diameter of a 1/4” polycord cable on the pulley is either 1.625” or 2” to match with our flex wheel sizes.
## Notable Features
* Same width as our original polycord pulleys in the same configuration
* Infinitely stackable
* Sized so that the polycord touches the object, not the pulley
* Designed with piloting pins and pockets to make assembly a breeze
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