1. Replaceable BoardEquipped with two boards of different sizes, 1913inch and 1611 inch. You can change them to the appropriate size according to your book size at any time. Can be used as a music stand or as a floor standing bookshelf 2. Excellent StabilityThe base of the music stand/Floor book Stand for sheet music consists of thicker metal tube and the sturdy metal tripod legs, which have nonslip rubber caps at the bottom. So it provides excellent stability. 3. Adjustable FlexibleThe height of the foldable music stand/Floor book Stand can be adjusted from 16 to 42 inches. Whether playing sitting or standing. Easytouse knobs adjust the tilt for a comfortable viewing angle. It's very useful, suitable for school, orchestras, choirs, church bands, classrooms. 4. You can open and close the music stand/Floor book Stand for sheet music quickly and easily. Comes with a carrying bag, highquality mental black bookplate and steel music stand is very easy to carry and store.