Upgrade your cabinet drawers with these high-quality Knobonly Soft Close Drawer Rails. With a full extension design and zinc plating, these drawer slides are not only durable but also stylish. Measuring 18 inches in length, 21 inches in height, and 18 inches in width, they fit perfectly in most cabinets. The soft-close feature ensures that your drawers close quietly and smoothly with just a gentle push. These drawer rails are ideal for anyone who wants to achieve a clean and modern look in their home. Made from high-grade cold rolled steel, zinc plated, steel construction full extension slides are rated for heavy-duty use(loads up to 85 lbs), featuring soft-close functionality to close any drawer softly and silently ?Size: Length:18 inch; Weight Capacity: 85LB, adjustable locking device, detailed instructions and mounting hardware included for easy installation ?These slides are compatible with most major drawer and cabinet types(undermount) and are ideal for new construction, remodeling and replacement projects ?Fits face frame or framless application. These versatile 18? drawer slides can be used for kitchen or bathroom drawers, office desks, or other personal storage areas.