This super heavy-duty stand features a patented 360 degree clamp lock which allows this stand to hold up 100 lbs of music! Ideal for heavy duty or school use - we think this stand will hold up well over time. Adjustable pitch desk is 19 3/4 by 13 3/4. Height adjusts from 26 to 48. Weighs 14 lbs and holds up to 100 lbs! Hamilton Lifetime Warranty against manufacturing defects.