10 set Contractor Pack (only $8.49 per pair) 100# load rating, full extension Soft Close Self Close medium duty slides. These slides have a hydraulic "Soft Close" feature to slowly draw the drawer closed without slamming shut. Slide features include: Steel ball-bearing action, lever disconnect, positive stop, 32mm hole pattern and full extension. Ideal use is 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 lifetime replacement limited warranty. Size: length 400mm (16 inches), width 45.5mm (1 3/4 inches), thickness is 12.7mm (1/2 inch) Actual cabinet member measurement: 15 3/4 inches, length open 31-1/2 inches. For Face Frame installation you will need rear mounting face frame brackets, Just search: GlideRite SK70. *Factory sealed contractor pack includes slides and instruction only, no screws.