Enhance the functionality of your folding door with the Prime-Line Products 828725 Bi-Fold Door Top Guide Wheel. This high-quality accessory is designed to make your life easier by ensuring that your door moves smoothly and efficiently. Made from durable materials, it is built to last and withstand daily wear and tear. Suitable for folding doors, this top guide wheel is easy to install and use. With a pack of 20, you can enjoy the benefits of this Prime-Line Products accessory for years to come. Upgrade your home improvement project with this must-have door hardware today!