MODEL The most stable I've tried has been over a year I have and I'm not.

Keyboard stand and keyboard heavy bottom said top lightweight, adjustable height, tilt the top one, maps also adjustable according to the place that we have to move (live style). Fully foldable, takes up little space trs after fold.
One small snag, the squares of foam provided to support the keyboard at the bottom are fool quality replacement as soon as possible if it is not too damaging the keyboard

This choice seemed the most appropriate in relation qualitprix and since I needed something VERY stable for days because I scne podium height!