5-pair Convenience Pack, 70 lb load rating, light duty slides. These slides are the same quality as our 70 series GlideRite slides except these slides are rated at a 70 lb load rating and have a narrower (35mm) width which makes them ideal for upgrading kitchens. Other ideal uses are in Office furniture, Cabinets, Closets, Kitchen Accessories, & Medical furniture. These zinc finished GlideRite slides are made of high-grade steel meets or exceeds all BIFMA, BHMA, and ANSI standards for quality and have a limited lifetime replacement warranty. Autual Size: length 550mm (21-5/8 inches), width 35mm (1 3/8 inches), thickness is 12.7mm (1/2 inch) Length fully open: 43-1/4-inches. 5-pair convenience pack includes slides, screws, and instructions. For Face Frame installation you will need rear mounting face frame brackets, just search: GlideRite SK35