The Hercules BS100B Compact Music Stand features a reinforced desk lip that creates strength and rigidity with minimum additional weight. The EZ Angle Roller has a special rubber grip that holds the desk at the perfect angle while also being instantly adjustable. Also features EZ Glide to make instant height adjustments by simply pulling up or down. The EZ Glide"s inner mechanism automatically locks the stand at the desired height and the tightness is adjustable. Legs are constructed of durable rectangular tubing. Folds up for easy transport.EZ Angle Roller Instant EZ Glide Durable rectangular tubing leg construction Desk size: 21" x 11.5" (535 x 293mm) Height: 27.1"-48.4" (690-1230mm) Weight: 3.2 lbs. (1.45kg)