https://feltright.com/products/tectonic-3d-acoustic-boxes 2026-09-24T15:05:31-06:00 daily https://cdn.shopify.com/s/files/1/0091/0272/1104/files/Mineral_Cast_3D_Boxes.jpg?v=1771015021 Tectonic 3D Acoustic Boxes Set of gray fabric acoustic wall panels in varying sizes arranged in two rows on white wall.