2 Corner Bass Traps 6- 12" x 12" x 24" Absorbers + 2- 12"x12"x12" Blocks Acoustic Sound Foam Kit - SoundProofing and Deadening - Made in the USA! Full Corner Kit 6- 12"x12"x24" Absorbers + 2- 12"x12"x12" Corner Blocks - Charcoal Color High NRC Rating of 1.35 Made in the USA! No Crumbling or Dust with our Products! Kit For 2 Full Corners Shipping Drops on qty's 2