FRMSAET Heavy Duty 305/355/405/455 mm Thickness Steel Construction Ball Bearing Keyboard Slides Keyboard Drawer Slides Tray Accessories Cabinet Furniture Hardware Rails (405mm, Silver)

It does the job well; construction appears good; it is straightforward to fit; height adjustable.

Good sturdy construction and does the job well,i have installed a 61key musical keyboard under my desk,only improvement i would have liked would be to have had slightly longer or thicker support brackets to prevent side ways movement.never the less good enough!

These were bought to replace some other runners which were a bit too long for my desk. I bought the 12" ones and they fitted perfectly. They are very sturdy and I doubt if the ball bearings will fall out and the runners fall to pieces as the original runners for the desk did after a couple of months use.

Used to add a slide out keyboard shelf in a built in cabinet. Very sturdy and my wife loves working on it.

The media could not be loaded. I had to set a midi synth underneath my desk for music production, so i decided i will order somwthing strong keyboard tray holder. This product looked like nice and middle priced on the market.I set it on my desk, but because my synth has some potmeters on it, the height is a bit high. So i need to use this product on the last whole of the screw. Because of it, the product became a bit weak and instabil, because my tray is too wide (90cm) and im not using it on the best setting. Maybe, if im using it for a normal keyboard for pc which is not too high and not too wide, the feeling is different. but the small balls that are responsible for sliding unfortunately squeak when I pull the tray in or out. I have already oiled it, but the sound has not stopped. This is a bit confusing. But other than that everything works perfectly. on the other hand, if someone wants to use it for the same purpose as me, look for another product.

The media could not be loaded. Sturdy. Easy to assemble and install. To keep the weight down. I used two bed slats and wedged my keyboard between them, but the construction of the brackets is such that it would have taken the weight. I could have used a piece of MDF. Just ensure that you get the correct length of bracket.

I'm using this with a 1.2m wide shelf for my 61 note MIDI controller keyboard - it works for this purpose, but it's slightly shonky. At this width, you need to pull on both sides at the same time or there's a danger one side gets left behind and starts to drag/rotate-in-situ. This doesn't bother me, but if you like things done properly you should try and find something more robust! The supplied screws for attaching the brackets to the underside of my desk were no use going in to oak - they'd probably be fine on softer woods/materials, but I had to source my own.

Much better than the ones my desk came with originally, these feel sturdier and work perfectly. Would recommend if your old ones give out frequently. Have been using these for a little under a year.