Bass usually builds up pretty heavily in the corners. Therefore it?s a good strategy to place all your traps in the corners where they will absorb the most amount of bass. Features: Material:?Brand New Bass Trap Acoustic Tile Foam and?Imported High Quality?FoamSize and Dimension: 30cm X 30cm X 50cm (11.8 in X 11.8 in X 19.6 in) Bass Trap Acoustic Tile FoamColor: BLACKIdeal for use in recording studios, home theaters?and karaoke roomSound-Absorbing Foam and?Improves vocal clarity and acoustics of your roomHighly fire retardantHelps to flutter echoes and reduce excess reflections and reverberation NOTE: This item is in highly densify packaging when delivered. Simply let it in wide open air space for 2-3 days so it will automatically go back to its original shape. Pull it gently by hand if the item is not recovered perfectly. PACKAGE/BUNDLE INCLUDES: Dragon Dash Bass Trap Acoustic Tile Foam ONLY OPTIONAL: ADD MORE EASY MOUNTING STICKY TABS/TAPES Add on more easy mounting sticky tabs/tapes together with your Bass Trap Acoustic Tile Foam by searching on Amazon: "Dragon Dash (24 Pieces) Double Sided Transparent Easy Acoustic Foam Adhesive Tapes" or search on your browser amzn.to/1UnCvwg OPTIONAL: ADD MORE TYPES OF SOUNDPROOF FOAM Pyramid Acoustic Foam - This product is best for walls or ceilings that is not parallel to the floor. Please COPY/PASTE amzn.to/1Rmg1Y0 and search on your browser. Wedge Acoustic Tile Foam - It is the most common Acoustic Tile Foam. Please COPY/PASTE amzn.to/25drAul and search on your browser. MORE Acoustic Foam Designs - Add more High Quality Imported Acoustic Foam designs to your room. Please COPY/PASTE amzn.to/290MB9w and search on your browser.