Replacement drawer runner sets to fit most makes of cabinets. MFI, Argos, Ikea, Homebase, John Lewis, Tesco, Hygena , B&Q and many more manufacturers. This type of runner fits within a groove on the side of your drawer. The width of the groove is 17mm wide. To find the runner size you need close your runner and measure this length. This does not have to be an exact match just as long as the runner is shorter than the depth of your cabinet. The longer the runner, the better the opening of the drawer. The extended length is just given as information and is not a critical dimension. This is the length of the runner when fully opened. Fixing screw kit contents: 6. 3.5 x 12mm (6 x 1/2") Pan head wood screws. 2. M4 x 10mm Pan head machine screws. We also sell 283mm and 314mm versions of this runner.