ALGES Seated Riser system is strong, versatile, and offers easy setup. The Seated Riser system can be arranged with different layouts -Orchestra or Band Risers, Choral Seated Risers and Black Box Audience Seating Risers that perfect for performing arts centers, choral groups, churches, schools, black box theaters and more! The latest in technological advances also makes our risers take up less space, leaving you with plenty of room or acoustic vibrations. You will reap saving for the life of the risers with ability to use them for virtually thousands of performances from graduation commencement to orchestral concert.