Water & Wood 10" Inch Drawer Slides Metal Ball Groove Bearing Runners 27mm Folding design, ball bearing movement ,side mount. Soft close mechanism adds a concealed piston to slowly draw the drawer smoothly and silently closed. Preventing drawers from slamming shut, stopping damages to drawers and keeping items from shifting Quad ball bearing and two slide construction produce outstanding full extension performance. Cushioned feature for pick-up noise reduction, used in Office furniture, Cabinets, Closets, Kitchens