Brand New Adhesive-Backed Acoustic Foam Made by Imported High Quality Foam Sound-Absorbing Foam High density acoustic foam cell structure for maximum noise absorption Helps to flutter echoes and reduce excess reflections and reverberation Improves vocal clarity and acoustics of your room Highly fire retardant Ideal for use in recording studios, home theatres and karaoke room Color: As Seen Size & Dimension: 25 X 25 X 2cm (9.8 X 9.8 X 0.8 in) 50 X 50 X 2cm (19.6 X 19.6 X 0.8) NOTE: The color stability of PEARL WHITE foams is affected by UV light, oxidation  and room temperature. Discoloration (Turn into YELLOWISH color) may  occur. Before making a purchase please make sure you are agreeing to this.