The Sahara panel created by Gabriel Tan is made of cork, a natural material with excellent acoustic properties. As simple and spontaneous as a sand formation carved by the wind, its shape is the perfect starting point for creating a multitude of patterns – from the asymmetrical to the symmetrical, from geometrically strict configurations to dynamic, random formations reminiscent of sand dunes. Sahara 4-pack wallpanel: 450 x 450 x 50mm Weight: 4412 g. Absorption αw factor = 0.15 Class E, ISO 11654 N10=1000, ISO20189 Scrating coefficient S = 0.83 for 4000 Hz, ISO1749 Product Link- https://abstracta.se/product/sahara-wall-panel-cork