14" Keyboard Slide Heavy Duty Ball Bearing Slides Computer Tray Under Desk Rails Rack Cabinet Furniture Drawer Hardware Accessories with Adjustable Height Bracket & L Extension Support Bracket(Sliver)

I ordered one for my RV built in desk and another to add to my sit/stand desk.The wider you make it, the more sturdy of wood you'll need to support the distance. So don't forget that. I installed one of the two so far and utilized it fairly heavy. 0 complaints.

works well for adding a keyboard shelf under a desk.

You get what you pay for. It technically does what it claims to, but is not super sturdy. Pretty thin metal that doesn’t hold its shape very well. Pulling on the drawer has to be exact or both sides won’t work smoothly together, and the friction point at full extension isn’t super strong either.

The media could not be loaded.  This under desk drawer hardware is one of the more inexpensive sets I found on Amazon. It's a good example of the adage "you get what you pay for". It works as you can see. However, it is not the sturdiest of such mounting hardware. Fortunately that is a trade off that is OK with me and my use. If you need something basic that is inexpensive, this may be for you. If you are using it to hold an expensive piece of equipment, you may want to look elsewhere.

I like that it locks to a retraced position, and doesn't take much effort to extend. Mounting arms could stand to be stronger, but the slide rails travel smoothly.

I liked this product just fine but I would hear a click as I pulled out the tray. Then before having it a week the left side fell off of the track and I’ve found several silver bearings on the floor under my desk.

The quality is ok and it did the job

I bought these rails to install a Solustre under desk keyboard tray ($17.28 on Amazon) and it works great with that. I chose the black rails to match the tray, so it's a little hard to make out in the photo. Installation photos are shown on the purchase page, but careful measuring is needed for best placement.