Auralex Sunburst Absorbers
"Acoustic treatment foam panels designed in both male and female configurations. They offer a significant amount of both low frequency control in particular and broadband absorption overall, they work well in rooms that do not have corners available for treatment with LENRDs. 4 pair per box. 32 lineal feet. Available Colors: Charcoal, Purple, Plum, Blue, Beige, Brown, Brugundy, Red, Orange, Kelly Green, Forest Green and Teal."