I have not seen quality manufacturing like this in decades. THIS is what American manufacturing SHOULD be!The individual parts are sturdy and heavy duty. The quality of the manufacturing process jumps out at you. Every pre-drilled hole is precisely correct - screws went in exactly as they should! The alignment of every hole was exactly where it should be. Every one that should be there was there and where is should be. The parts are solid! There will be no stripping, bending or pulling apart. You just don't find that anymore. I didn't realize how rare it is until I got these!The instructions were simple, clear and understandable! I have to say that twice because it is so worth repeating..... The instructions were simple, clear and understandable! With most things I get today, I'm never really sure what the instructions are saying and generally rely on trial and error to get it right. Not with Rev-a-Shelf. And if all else fails, visit their website and they have a video for installation! (Not that I needed them because the instructions were good. I stumbled on it while searching for products for all my cabinets.)After I bought the "Pull-Out Wood Foil Wrap/Tray Divider Cabinet Organizer" for a base cabinet that was so narrow I knew I wouldn't really be able to use it without a pull-out, I was so impressed with the quality, functionality and the ease of use it gives me, that I bought Rev-a-Self for each of my base cabinets and a couple of the pull out spice racks for a couple of narrow wall cabinets.If you ended up with 9" cabinets in some places, like to provide cosmetic symmetry as I did, those Rev-a-Shelf pull-out gave me back space that I had written off as unusable.But even for normal sized base cabinets, where I would otherwise need to be kneeling on the ground to reach things in the back, and therefore limited on what could actually go there without risking the need to take out everything in front of it to get to it, these have been a fantastic addition. As I got older, bending far down or getting back up from kneeling has become problematic, making these pull-outs great for me.Wish I could give these 10 stars. Quality and workmanship I haven't seen since I was young. Relative to other things I have given 5 stars, it isn't fair I can't give these twice as many stars.