Auralex Elite SFS112 SonoFlat Room Treatment Kit (Burgundy)The SFS 112 is best suited for rooms that do not need diffusion. One or two of the SFS 112's are perfect for smaller rooms. The SFS 112 offers a very economical way to get great, accurate acoustics, and provide a design that looks like other, more expensive alternatives. 2" SonoFlat Panels (charcoal, burgundy or purple) 24 (96 sq. ft.) SonoColumns (Charcoal Only) 4 (16 sq. ft) SonoCollars (Charcoal Only) 4 Tubetak Pro Adhesive 5