Clamp-on Height Adjustable Keyboard Tray

Just what I was looking for

Easy to assemble and feels solid. Sliding is pretty smooth. The height between the tray and desk is just right for my mouse and hand to fit, so I can use it fully pushed under the desk sometimes. I still have plenty of room to adjust in either direction. Nice to have flexibility on height without sacrificing stability.

Excellent but not perfect.

This has helped me out a lot and is a great and cheaper solution to buying a motorized standing desk. Well built product, all the parts are sturdy and handsomely manufactured. Putting it together was pretty easy, it took almost 20 minutes. The instruction sheet is well done but I think the illustrations could be better, if you are no paying close attention, it can be easy to put a bracket on backwards. The YouTube video helps clarify the direction of the parts. Sit at your desk and measure where you want the tray to land to avoid clamping the whole thing to your desk more than once. The guide rails could be better. They frequently stick, which seems mostly due to not sliding out evenly at the same time. You have to pull the tray in and out directly from the middle or with one hand on each side. When it does this, it doesn't go back under the desk completely; I have to give it a firm shove on the corner (it's usually the right side) to fix it.

Better than advertised

This VIVO clam-on keyboard tray was the only one I could find with clamps large enough to accommodate my desk. Despite the claim that it could not be used on a desk with a undercarriage frame, these clamps are holding fast. I am very pleased with this purchase. And to sweeten the pot, I ordered this directly from VIVO, bypassing Amazon, and paid the same price and got free delivery the very next day. I would definitely recommend VIVO products and company.