Clearsonic Sp40 Studiopac 40Includes 36 S2224 8 S2233 Clouds 8 S2216 4 S1266 4 S2466ClearSonic contains everything you need to produce professional sounding audio recordings in rooms larger than 300 square feet. The kit features SORBER baffles for absorbing sound from the ceiling and walls, and BassTrap 5 assemblies to absorb sound that would otherwise reflect off the ceiling corners. Each kit contains: 8 S1 17 x 22" SORBER Baffles 36 S2 24 x 22" SORBER Baffles 8 S3 33 x 22" SORBER Baffles 4 BassTrap 5 Assemblies: 4 STC5 Panels 4