Black plastic lip slides onto the “desk” of our black Ultimate folding music stands, actually making them sturdier. Also works on the Manhasset stand. You can store rings, pencils, tuner, small metronome, eraser, all kinds of things that you don’t want to fall off the stand while you’re turning pages. Made of ABS plastic, it is 16″ long, 1¾” deep, and 2″ high. Only works on stands with a very thin “desk”.