1 Lb Mass Loaded Vinyl Soundproofing Barrier Use to soundproof a wall, soundproof a floor, block noise from coming in from the outside. Safe and non-toxic to soundproof a baby's room. With drywall, blocks up to 85% noise. ROLL SIZE  THICK  SQ FT   PRICE  SHIPPING BUY 4.5' x 10' 1/8" 45 $125.00 FREE Please Note: In order to keep prices affordable to you, OUR VALUED CUSTOMER, we are discontinuing our 20 foot lengths until the price of fuel levels. We are sorry for any inconvenience this may cause. We will work with you to find a reasonable solution if your project requires 20 foot lengths. Check out our new offer in sheet sizes! NEW OFFER! SHEET SIZE  THICKNESS  SQ FT   PRICE  SHIPPING BUY 4' x 8' 1/8" 32 $69.00 FREE