Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mic stand shelf bracket manufactured improperly!

The mounting bracket opening on this mic stand shelf is ~2mm TOO SMALL to fit around the lower (fixed, more stable) tube part of any of my mic stands, or any of the mic stands at the studio where I rehearse. It must be designed to fit Chinese mic stands, not US! However, it WILL fit around the upper (telescoping) tube, with excessive amounts of wobble.