Product Includes 1 Bass Trap PanelWall-Mounted/Corner-Mounted Acoustical Absorption PanelsReduce Unwanted Acoustical ReflectionsTame Chaotic ReverberationAffordable Absorption Solution For Professional & Residential SettingsEZ-Stick Pro Mounting Tabs IncludedDimensions: 3 in. At the core of eachpanel is our high performanceStudiofoam Pro,allowing theSonoLitewall panel to achieve an NRC rating of 0. SonoLite Bass Trap Black profile. Extends 17 in.