The package includes: 1 pair (2 pieces) of drawer slides, plus mounting screws (about 10 pieces).Material: the drawer guide is made of steel, the surface is electroplated, the workmanship is superb, the load capacity can reach 10kg, and the service life is long.Rail size: length 310mm, width 17mm, height 9.5mm.Ball design : built-in strong steel balls, double row ball design, smooth sliding.Widely used: drawer slides are suitable for wooden drawers with 17mm groove and wooden and steel drawers such as cabinets, wall cabinets, furniture, document cabinets, bathroom cabinets and other furniture.1 Pairs (2 Pieces) Metal Drawer Slide Rail Rolling Ball Bearing Ball Bearing Slides Drawer Slides Ball Runner 17mm Drawer Runners Length 310mmSpecifications:Material: SteelSize: 310mmx17mmx9.5mmColor: SilverQuantity: 12 in totalThe guide rail is made of high quality steel, the surface is electroplated, and the service life is long.< /p>Soft and quiet, the guide rail runs smoothly, and the drawer can be easily pulled out.Two-way sliding, convenient to use and more space.The load capacity is up to 10 kg.Note: It is suitable for installation on a wooden drawer with a 17mm groove.Suitable for wooden and steel furniture drawers such as cabinets, wall cabinets, furniture, document cabinets , bathroom cabinets, etc.Package includes:2 * Drawer slidesNote: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received.