Premium 1/8" Acoustic Foam Roll 250 sq Ft 5' x 50'- SoundProofing/Sound Deadening Acoustical Foam Sheet Barrier - Made in the USA! Huge 5' x 50' Roll! 250sq Ft - 2lb Per Cubic Foot Density - Made in the USA! 1/8" Thick for excellent sound absorption For use in walls, ceilings, and floors (non-toxic) Best when used as one part of a multi-layered construction theme