1. The threads are very tight with almost no backlash. This means there is no lateral movement which creates a rock solid furniture. I'm using this on a homemade woodworking workbench.2. The feet are *really* nonskid. Note that there are other furniture feet that are the opposite that are supposed to help in pushing furniture around.3. The metal and material are beefy so looks very strong.4. Comes with locking nuts. Another set I ordered did not have them so the height would change after sometime if there was any movement of the furniture.5. No need to use a 1/2" drill bit for installation which is harder to find in your tool shop. Several other feet with the same size threads require this size drill bit.I'm using these feet on some movable counter-tops we're installing. The concrete floor isn't perfectly flat and also there is a potential for water on the floor so it was important to keep the wooden legs off the floor. I installed these in 2x2 oak blocks that were attached to the legs. Admittedly, the white oak blocks were more difficult to install the Tee Nuts (a little saliva helps lubricate as you turn them in and out), but patience and perseverance won out. I used some 2x2 red oak blocks also, into which the Tee-nuts inserted very smoothly and quickly. Having a 10mm hex wrench is critical for proper insertion...don't try to fudge with a closely sized Imperial wrench.Great product, I'm confident we'll be ordering more for this project.Thte pieces arrived in a timely manner. They're well made and true to the pictures presented. I used to of the four to support the lower portion of a waterfall countertop in a utility room. The utility room is locatedin a converted garage area which mandated the ability to adjust the leg height independently for the slopeof the floor.These worked great. The floor in our room dips badly due to age but I was building a furniture unit that needed to be level. These legs were exactly what I needed and were very easy to install. Drill the hole, tap in the grabber thread and screw in - tighten with included nut. No complaints!I was installing the product as listed in the Description. I put the first 3 items in no problem, but on the 4th installation the bracket broke. Lucky for me it was about 3/4 the way in so I was still able to use the leg without a problem.I got this for the planer stand that I'm working on, and it was easy to install and appears to work very well. I realized a couple of days ago that I'm going to need something like it for my infeed and outfeed tables, and this one seemed so good that I just ordered another set. It should arrive tomorrow, since the first set came either on time or earlier than promised (not sure). I did my homework before I bought these, and I've not been disappointed!Used these on a dining room table I made. I had issues with the nut binding on the threads. Also, the rubber foot is only held on with a rivet, so it spins freely from the rest of the foot. Mixed with the binding threads, this means you REALLY cannot adjust these feet unless you leave enough room to get to the nut. Your options are to either leave the feet sticking entirely out of the bottom of the leg, or put a sizable cutout in the side of the leg so you can reach the nut with a wrench.