The Acoustic Sound Diffuser Panels are 12 x 12 x 1 inch PVC plastic wall panels designed to reduce noise and improve sound quality in a room. With a geometric pattern and a square edge style, these panels offer a modern and sleek look for any space. The package includes 4 white pyramid-shaped panels, each weighing 4.2 oz, providing a durable and effective solution for sound management. These have been used and are slightly dusty.