Armstrong's CALLA Shapes for DESIGNFLEX Acoustic Mineral Fiber Ceiling Panels are designed to simplify complex ceiling layouts while offering design freedom. The panels feature a non-directional visual for easy installation and consistent alignment. In addition to strong acoustic performance, they are resistant to sagging, mold, and mildew, making them ideal for long-term use. Manufactured with sustainability in mind, they meet low-VOC emissions standards and contribute toward LEED and WELL building certifications.