Measure for a Proper Fit Inside drawer width must equal cabinet opening width minus 1-7/8". Compatible with 1/2" to 3/4" drawer side thickness. Face frame applications require rear mounting sockets (sold separately). Smooth Soft Close with 3D Locking Clips Integrated soft-close system provides silent drawer closure. Includes 3D Adjustable Lock Device for precise alignment and installation. Heavy-Duty Load Support – 75 lb Capacity Ideal for kitchen, bathroom, dresser, or commercial drawers. Built for high-traffic use and heavy contents. Cold-Rolled Steel for Long-Term Performance Made from industrial-grade cold-rolled steel with galvanized finish to prevent corrosion and ensure lasting durability. All-in-One Installation Kit Includes 1 pair (2 pcs) drawer slides, screws, 3D clips, and instructions for straightforward DIY or contractor installation. Bring lasting performance and soft-close precision to your drawers with TOUCH 21" Undermount Drawer Slides (1 Pair)—a professional-grade upgrade for home and commercial cabinetry. These heavy-duty glides support up to 75 lbs per pair and feature a 3D Adjustable Lock Device for fine-tuning and secure fitment. Constructed from cold-rolled steel with a galvanized finish, these slides are engineered for durability and consistent smooth operation. Compatible with face frame (with rear brackets) and frameless cabinets, these glides are a go-to solution for builders, woodworkers, and serious DIYers. Specifications: - 21" (533mm) soft close undermount glides - 75 lb capacity per pair - 3D adjustable locking clip system - Cold-rolled steel with corrosion-resistant galvanized finish - Compatible with most cabinet styles Includes: - 1 Pair (2 pcs) drawer slides - 3D locking clips - Screws - Instruction manual