This is a 16-pack of 2' x 2' x 2' SonoFlat panels made of Auralex's industry-leading Studiofoam and offer great absorption of mid to high frequencies. The edges are beveled, contributing to an elegant look not normally associated with acoustic foam. SonoFlats are equally at home in a recording studio or a home theater, offering a unique, sophisticated look and a cost-effective choice for accurate sound.