Product name: Polyester Fiber Acoustic Panel Basic material: 100% high quality polyester fiber Colors: White, blue, green, Yellow, gray,etc. Spec: 1220mm*2420mm*9mm or make to order (the thickness of our acoustic panels is ranging from 7mm to 50mm) Features: Sound absorption, fire resistant, environment-friendly, moisture-proof Application: It is suitable for office, conference room, auditorium, KTV, exhibition room, stadium, hotel ect. It also can be used as the interlayer for furniture. Everywhere you think you need to use. Various patterns and colours are available so as to meet all customers' demands Brand Name: YUSHU Thickness: 9/12/15/20mm Fire rate GB 8624-2012 class B1 Surface: Standard NRC: 0.65-0.95