Hex Series - Hexagonal Foam Wall Panel - 24" - Charcoal - Class B. Designed for users looking to treat unique problems in the listening room, as well as to lend a personal touch to any creative space- the new Hex Series absorption panels from Ultimate Acoustics offer a stylish and affordable option for adding a personal touch to your problem solving. Arrange in attractive patterns and make the most of your foam purchase with the new Hex panels from Ultimate Acoustics.SpecsSize: 24" x 24"Type: Wall PanelQTY: 2Color: Charcoal.