Douper 200N Gas Struts Heavy Duty Soft Close Lid Support Hinges Automatic Slow Lowering Safety Pneumatic Lid Lifters Gas Springs Pack of 2

I’m really pleased with these pneumatic lid lifters! They’ve made a big difference in how smoothly my cabinet doors open and shut. They’re solidly made, and I got them at a much better price than what I saw at the big stores—those were almost twice as much. These are just like the ones that came with my new cabinets, so I’m happy I found them and was able to make my older cabinets match. I also needed some gas shocks for an old chest to help slow down the lid, mainly for safety with the kids. Even though there’s nothing harmful inside, they tend to get curious and open the lid, so I wanted to make sure it closed slowly and safely. The installation was a breeze, and the shocks work perfectly to slow the lid. They feel sturdy, so I’m confident they’ll hold up. The instructions were easy to follow, and the whole setup was simple.

I fabricate hardwood equestrian tack trunks for use in stables - see photos. Each box weighs approx. 75 lb and the lids alone are 40 lb. I tried a different closure but it was not sufficiently sturdy. These are the 200nt closures and would certainly be sufficient for any lid of this weight or lighter. While some reviews have stated that the instructions are not clear, I found them to be fine - the measurements stated are good starting points, but some adjustments will likely be needed. I’ve now completed 16 of these trunks over the past three years and have had no issues at all with them.

The media could not be loaded. I installed this on a large chest for my son to prevent slamming the lid on his fingers. Instructions and installation dimensions weren’t the easiest to follow but the hinges are sturdy and operate great. The dimensions are given in tenths of an inch instead of fractions so, unless you have a scale, you are forced to approximate the dimensions on your measuring tape. After figuring out the correct positioning, the installation is pretty simple. There is now zero chance that the lid can slam shut. These hinges took my hope chest refinish/upholstery project to the next level as well as made it safe for my son to use. Would have been five stars if the installation instructions were simpler and clearer.Tips for quicker installation: First, install the lower bracket using the two given dimensions between the bracket center point as measured from the back and top of the box. Then, install the fully extended hinge onto the lower bracket with the single screw provided. Then, hold the lid open at an angle of 75 degrees while marking the top hole location of the upper bracket on the inside of the lid. I used a digital protractor to ensure proper angle. You will need to uninstall the hinge from the lower bracket to mark the lower hole location of the upper bracket. Drill marked holes and install hinge at all locations. Done!Drilling tip: Wrap a piece of tape on your drill bit at 1/2” from tip. This will give you a depth mark to prevent drilling through the sides/lid of your box.

The Douper 200N Gas Struts work very well and were perfect for my project.I built a hinged lid on top of a horizontal Murphy Bed that needs to be opened 90 degrees and held in place to open up the bed. The lid weighs 25 pounds, and a single gas strut was all I needed to manage the load.It was a little tricky to figure out the mounting position because the lid is more of a crown sitting on top of a cabinet designed to look like a piece of antique furniture. The instructions provide measurements for a more standard box design that you have to “translate” to a piece of furniture where the lid is a box and not a flat panel.To make this work I used a scrap piece on the side of the cabinet to attach the lower part of the hinge in a trial location. Once it was attached, I marked a connection point on the lid with it opened to 90 degrees where I wanted it. The first attempt was pretty close but did not allow the lid to close all the way. So I shifted the strut down which got things working perfectly.I definitely recommend these struts.

The product is decent, and it wasn't too hard to install. However, both the description on the Amazon site and the instructions are incomplete. It will force open a lid that is less than 30 pounds. However, it will not hold any position, nor will it soft-close on its own. It's either open, or shut, and to shut it you must push down until the door engages in some latch (not included) that you must install. In order to hold it shut I had to install two magnetic catches. If your door/lid is exactly the correct weight (whatever that might be) it's possible the gas strut will maintain an arbitrary position between shut and fully open at 75 degrees. But for my toy box with a wooden lid, the strut only makes the lid fly open. It will prevent accidental drops on fingers, though.The other issue to know is that the instructions are terrible. They refer to tenths of an inch, which no one uses. The diagrams are unclear and sloppily drawn, so that it is not obvious if a dimension refers to the distance between an edge and the bottom of a hinge bracket - or if it refers to the distance between an edge and the center of the hole in the hing bracket (it's the latter).