Just a warning to anyone who plans on replacing the slides in their snap on box, if Your drawer is loaded it may bend at the welds in the front that hold the front to sides. I put a set on my socket drawer and it started to bend and separate, I managed to fix it but it could have been worse, it has to do with the rubber catches in the back of the slide and after removing the rubber it doesn't stick in so no force has to be exerted on it to get it open witch is what bends it in combination to the drawer being loaded full.
