These heavy-duty drawer slides are built from high-hardness steel for durable support in cabinets, industrial drawers, vehicles, and storage applications. The 3-fold full-extension design gives you access to the entire drawer, while the dual-lock system helps keep drawers secure when closed or fully extended. Double-row ball bearings and nylon cushioning promote smooth, quiet operation. The galvanized finish helps resist rust and wear over time. This package includes one pair of side-mount drawer slides with installation screws.