2pcs Folding Lift up Top Coffee Table Lifting Frame Desk Mechanism Hardware Fitting Hinge Spring Standing Rack Hinge Rack Bracket (Gas Hydraulic)

They actually fit the predrilled holes on the table I bought! Love it!

I completely refinished our old coffee table and cut the top off and added these. They worked great on the project. I was concerned that the heavy top (30 lbs or so) would be an issue, but it lifts smoothly with minimal effort and even my wife and raise or lower it alone. Height is perfect to eat or use the laptop from our living room couch. I noted there were much more expensive models but I couldn't see a lot of difference in the specs for the price so thought I give this set a try. I'm glad I did. They are well made and do what I expected them to. Recommend,

They work but not to sturdy may be good for small projects but not for coffee table

I used these to make a lift up-and-out desktop extension for a restored roll-top desk. The weight of the extension top prevents it from automatically springing up when it's folded down, and yet the springs are strong enough when expanded that they don't collapse without a good intentional push down. PERFECT! These springs absolutely solved my problem.The extension configuration rests below the desktop surface. It slides out on cabinet glides. Then the extension is pulled up and out, which puts the extension top level with the desktop. I then slide it all back to butt up against the desk, extending the working desktop area (hopefully the pics make some sense of all this).

Using these hinges, I built a 36x18 lift-top coffee table. The top is fairly heavy, being built from veneer covered 3/4" MDF with a hardwood border. As others have mentioned, it's a little wobbly when lifting, but this can be reduced by grabbing both ends of the table top while lifting. When in the open and closed positions, there's no wobble.Screws are not included, nor are there any installation instructions, but installation is fairly simple. You will most likely need to have access to the bottom of the table cabinet in order to install these hinges. I found it easiest to lay the top down on the floor, upside down and position the table cabinet in the desired position over the top, then mark the screw holes for both the table top and the cabinet at the same time. In this way, the top is positioned perfectly in the closed position.When ope, the table top is raised about 6" higher, and about 11" forward of the closed position.

The hinges did not come with screws, I assumed that they were included, and one of the hinges had a broken zip-tie that was supposed to keep it properly closed in its plastic wrap, and that hinge wound up not wanting to stay down and closed once installed. Luckily the lid is heavy enough to keep the hinges closed when needed. They work. I'm just hoping it stays that way for a long time.

I wanted to get a coffee table with this lift but they were all so expensive so I made my own and this product was great! Easily holds up the top, goes up nicely, have to go at the right angle and pressure to push back down, but exactly what I needed

I was nervous to buy because of other reviews but I’m so glad I took a chance on this. It was easy to install, works great, and really personalized my furniture to my needs.The cons- no screws but I had some on hand that worked just fine. Also no directions but wasn’t a huge issue with some critical thinking. Last- not really a con to me but another review mentioned some scratches in the powder coating, which mine had as well, but personally I don’t care at all.Tips for installing-Leave the zip ties on until you have screws in both the top and sides if possible.There is a small round stopper that’s the size of an aspirin that protrudes- this goes in the top corner and should be facing the direction you want the top to pull out.I aligned it on the sides and had someone hold a book on top to make sure it was flush while I added screws and repeated on the other side. Then you can perfectly align the top in the closed position and screw it in. After both of those steps I cut the zip ties and continued adding the extra screws. The top sits exactly where I want it to and isn’t wonky like some other reviews. If this is a custom build I’d recommend waiting to add all four sides to the base until after assembly.Great value for the money, don’t be discouraged by some of these reviews. I’m not particularly handy/certainly not even an amateur carpenter but it came out great.