EUREKA ERGONOMIC Height Adjustable Mouse & Keyboard Tray Under Desk, 28x10'' Large Slide Out Swivel Tilt Computer Keyboard Drawer with Mouse Pad for Gaming Home Office Desk, Dual Mount

I used this for a custom built desk, and it fit perfectly. The keyboard tray seems to be holding weight perfectly fine even after six months of almost daily use. The keyboard mat is very nice and slippery, great for gaming on. The shape of the mounting bracket is perfect for going around support structures under the desk, and is actually adjustable which is very convenient.

This tray is fantastic. I would buy it again in a heartbeat. I just don't think that i'll get to that point. I'll go into a bit more detail.Comfort: This tray is very comfortable. It is very easy to adjust. Adjusting this tray is all done via one knob, which is located under the tray. This knob is the only problem that i have with this tray. This knob allows for the entire tray to be adjusted to fit your needs, which is incredibly simple to use. The problem is not with the ease of use, it's with the location. When i slide this tray over my lap and then i slide my body under the tray, this knob resides exactly where my knee wants to be. Disregarding this unfortunate placement, this tray is extremely comfortable, and even offers some limited negative tilt (which i prefer)! At first, i was concerned by the method that the tray slides back and forth, which is just some sliding plastic on metal rails. After using it for a while, it occurred to me that the design was simple on purpose. It is not easy to slide, which keeps the tray in place without requiring a locking mechanism. This allows me to slide the tray in and out without adjusting any knob, but also keeps the tray in place unless i want to move the tray!Sturdiness: This tray is very sturdy. I am the kind of person that leans on the keyboard and slams on the keys (from learning to type on a typewriter), and this tray doesn't even budge when i type on it. It feels like i'm typing on a desk! It allows for multiple movements, which do not affect the sturdiness of the tray. This tray is incredibly sturdy. I speak about how i mounted it in the next paragraph.Easy To Install: This entire tray was not difficult to install. The tray arm assembly can come out of the rail itself, which makes installing the rail underneath very simple. I installed this using the standoffs, as i have a very complicated situation on the underside of my desk. There are actually more orientations under the desk than are advertised, as there are extra holes in the rail! this made it so the very limited space that i had under my desk could be effectively utilized. I would recommend pre-drilling some pilot holes in your desk to ensure that assembly is easier, but other than that this was a breeze.

This sucker is BIG, so make sure you measure your desk, especially if you have shelves or drawers on one side.It has ample room for my die-hard Model M keyboard. The height and tilt adjustment is awesome -- I hurt my left wrist, and tilting the front of the keyboard up helped tremendously.It is sturdy and steady and does not budge while typing on it, and i lean my wrists on it while doing so.I don't have room to leave the keyboard on it when it's retracted, mainly because my CPU tower is also under the desk and it is TALL. (no, i'm NOT compensating for something!)It took me a good while to install, with my new Bestier desk, I had to use a nail to start the screw holes, as well as a Dremel to start the hole. I don't mind, that means the wood is tough enough to hold this. Had no problem with the metal frame of my desk.The diagram shows to screw the first bracket in front of the metal frame, but there wasn't room for me to do that. No matter, it fits behind the frame just fine.The only downside is, it does not 'glide' smoothly in and out. As recommended elsewhere, I hit the rails with some WD-40, and that did seem to help. I guess at least it doesn't roll away when you lean on it.Strange bonus: since I got this keyboard tray, my cat no longer tries to use my keyboard as a pillow while she's sitting on my lap as I type. ;D

Long review. Short summary:1. No fatigue or pain after 8/10 hours at the desk.2. Plenty of space for keyboard and mouse.3. Adjusts exactly where I need it.4. Easy to install.5. More cost-effective than buying a $1000 chair to adjust to your desk.6. Very happy and would recommend.7. tray adjustment isn’t as smooth as the very expensive ergonomic trays, but the difference in smooth movement isn’t worth $500.I installed this on my adjustable height desk, 2x4 ft top. I was able to install it over the crossmember on the adjustable height desk without any problem.To minimize fatigue and pain, ergonomic experts suggest that you’re legs should be bent at the knee at 90°. Your upper arms should be bent 90° at the elbow, with your forearms resting on the armrests of the chair, allowing your hands to move free, and your head pointed straight forward. I’m able to obtain the correct settings for my arms and legs with this tray and my $100 big box store chair.I’ve had very expensive ergonomic trays at past companies where I have worked and I wasn’t sure if this cheap one would adjust enough for me, but works just fine. I just leave it in the position where I use it as I have no reason to put it under the table on a regular basis. I use the LARGE Microsoft ergonomic keyboard and the tray has plenty of room for the keyboard and mouse. I posted one picture with my big ergonomic keyboard on the tray and another with a regular size keyboard. A little vegetable oil might help it slide more smoothly when you try and push it all the way underneath the desk, but I didn’t want to try that as I worried it would allow the tray to move while I’m typing.Amazon has some very inexpensive adjustable height desks starting around $130, I would HIGHLY recommend getting one to go with this . A 2’ x 4’ top is plenty of space when you have this tray. It makes it even easier to get comfortable relative to the position of your chair.The only thing I might change would have been to install the tray a little off-center to account for how my 24 inch monitors fit on my desk.