Clearsonic Sp30 Studiopac 30Includes 24 S2224 4 S2233 Clouds 8 S2216 4 S1248 4 S2448ClearSonic contains everything you need to produce professional sounding audio recordings in rooms between 150 and 300 square feet. The kit features SORBER baffles for absorbing sound from the ceiling and walls, and BassTrap 4 assemblies to absorb sound that would otherwise reflect off the ceiling corners. Each kit contains: 8 S1 17 x 22" SORBER Baffles 24 S2 24 x 22" SORBER Baffles 4 S3 33 x 22" SORBER Baffles 4 BassTrap 4 200 small touch fasteners