We had a vanity cabinet that used plastic brackets to attach metal drawer slides (and it wasn't a cheap cabinet!) Well of course after normal use the bottom of one of the brackets broke causing the slide to fall off and the box became unusable. I contacted the manufacturer (SunnyWood) who informed me that they no longer use this type of mounts. I then asked how they recommended the repair and they sent me what they use in their vanities NOW. I would have had to disassemble part of the case to do this as it was a completely different setup. They stated that these brackets were "no longer available". After looking at replacement rails and brackets for two weeks and not knowing how I would do it myself, I decided to take a look here. AMEN! Revain had the same braces which I was told are no longer made. I ordered a set of these and although they were slightly different they were screwed on in 5 minutes and the vanity was fixed! It's a pity that the make-up carpenter didn't look in here. ;)