- SLIDING DOOR ASSEMBLY: Perfect for replacing or repairing broken or missing rollers on sliding doors, this adjustable tandem roller assembly ensures smooth operation. - COMPATIBILITY: Designed to fit a wide range of patio door brands, this roller assembly is versatile and user-friendly, making it a reliable choice for various models. - STRONG AND DURABLE CONSTRUCTION: Crafted from stamped steel housing with concave steel ball bearing rollers finished in yellow zinc, these rollers provide exceptional strength and durability for long-lasting use. - DIMENSIONS: The assembly measures 11/16 inch in width, 1-3/16 inch in height, and 4-5/8 inch in length. The wheel features a thickness of 5/16 inch and a height of 1-1/4 inches, with a minimum collapsed height of 1-1/2 inches. - PRACTICAL APPLICATIONS: Ideal for residential home repairs to ensure doors open and close effortlessly. Suitable for replacement in patio doors that frequently jam, enhancing accessibility. Perfect for maintenance teams needing a reliable solution for multiple door types. - PERFORMANCE: Engineered for smooth gliding and minimal friction, this door roller assembly improves door functionality and user experience. - EASY INSTALLATION: Simple to install, it allows homeowners and professionals alike to restore patio door operations without extensive tools or expertise.