Features: Upgrades your patio door functionality with our glidings Patio Door Roller Assembly, specifically designs to door and ensures smooth operate each time . Crafted with a robusts 1 1/4" steel bearing, these rollers are side adjustable for a perfect fit, offering durability and ease of installation, replacing old models from 1964 to 1982 and fitting newer from 1982 to present. Suitable for homeowners look to enhances their patio door' Glides or handymen tasked with maintenance, this roller assembly is solution for simple upgrades. Transform your indoor outdoor living space with ease; whether for a sunrooms, deck entrance, or any glidings patio door, these rollers provide the reliability you need. Do not let a stick door disrupt your day; our roller assembly ensures that your patio door open and close effortlessly, adding a touch of convenience to your home improvement projects. Specifications: Material: aluminum Length: about 11cm/4.3inch Diameter: about 3cm/1.2inch Package Includes: 3xSliding Glass Door Rollers note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorfil of the item.