Features: The product can be rotated in multiple directions to let you lock in the good music angle. Metal ring keep sheet music locked in place, even in wind or vigorous marching. These metal parts are sturdy and durable, no wobbling, no losing, no breaking. This product contains 1 flip folders to increase the area for displaying sheet music. One-handed operation enables quick adjustments on the fly, relieving neck fatigue and keeping you focused—even during extended performances. Specifications: Material: ABS Color: black Size: about 6.3 x 7.48 inch/16 x 19 cm Package includes: 1 x Flip Folder 10 x Reversible Sleeves 1 x Fixed Bracket 1 x Metal ring Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays