These heavy-duty drawer slides are built for smooth, stable operation in cabinets, industrial drawers, vehicles, and storage systems. Made from high-hardness steel with a galvanized finish, they are designed to resist wear and rust over time. The 3-fold full extension design provides easy access to the entire drawer, while the locking mechanism helps keep drawers secure during movement. Double-row ball bearings and nylon cushioning support quiet, controlled sliding. This pair is sized for 18" applications and supports loads up to 250 lbs.