Surepromise Plastic Draw Drawer Runners Kitchen Bedroom Cabinet Guide Rail Rails Plastic drawer runners 300mm Long x16mm Wide x 13mm Deep. The runners are suitable for drawers with a 17mm groove. These runners are screw fixing with 4 holes to give a secure fixing which take 3.5mm gauge screws (not supplied) Note: Please allow 1-2mm slight size difference since it's measured by hand!