The UA-WPW-12 professional acoustic panel is the perfect choice for small- to medium-size rooms looking for both traditional style and professional results. This 24-pack contains 12 x12 x2 wedges. NOTE: Samples of Ultimate Acoustics studio foam products have been commercially tested meeting the criteria for a Class B rating. Color fading may occur with UV exposure over time. Sunlight and direct light from standard bulbs should be avoided. Color fading not covered by warranty.