The Manhasset 4801 (AC48) is probably the best-selling music stand in the world! High quality American manufacture with a host of features:
Solid brass bearings, greaseless heavy-duty chrome inner shaft and a patent counterbalanced 'Magic Finger Clutch' means the height can be adjusted with one hand and it stays secured, even with a heavy load of music. The tilt of the desk is similarly adjusted without knobs to tighten.
The shaft and base are welded steel and the desk is black-coated aluminium.
The result is an extremely durable stand with a finish that resists scratching and chipping.

Desk is 20" x 12.5" (508 x 317mm)
Height adjustable from 26" to 60.5" (660 to 1536mm)
An excellent product at a very reasonable price - recommended!