I have a ClosetMaid 1566 2-Drawer Stackable Horizontal Organizer and the top rails on the drawers are broken. I kept finding small ball bearings. They are slightly shorter than current drawer slides, but new holes can be made with them using a drill. My drawers went from dumpster to working drawers again. I like these slides better than the ones that come with them. They came with no instructions so it took a bit of trial and error to get them working. I figured it would be best to attach it to the outer case before attaching it to the drawer. The fact that the slides move in both directions helps reduce the length of the slides compared to those that came with the drawers. I couldn't find any slides that were the right length for the drawers but still fit the gap in the drawer. They're definitely 0.7 wide because they're perfect for the groove.