- SLIDING DOOR ASSEMBLY: Easily replace or repair malfunctioning sliding door rollers with this adjustable tandem roller assembly, ensuring smooth operation for your doors. - COMPATIBILITY: Designed to work seamlessly with a variety of patio door manufacturers, making it a versatile choice for your replacement needs. - STRONG AND DURABLE: Constructed from stamped steel housing with concave steel ball bearing rollers, finished in yellow zinc. This assembly is built for longevity and resilience, handling daily use with ease. - DIMENSIONS: The housing measures 11/16 inch wide, 1-3/16 inch tall, and 4-5/8 inch long. The wheel is 5/16 inch thick by 1-1/4 inches tall, with a minimum collapsed height of 1-1/2 inches, ensuring a precise fit for most sliding doors. - USE SCENARIOS: - Ideal for homeowners looking to restore the functionality of their patio doors that have become difficult to open or close due to worn rollers. - Perfect for DIY projects where existing sliding door rollers are broken or missing, providing a straightforward solution for an efficient repair. - Suitable for contractors or maintenance professionals in need of reliable replacement parts for various patio door installations. Enhance the performance of your sliding doors with this durable roller assembly, designed for optimal function and long-lasting use.