4 PCS Acoustic Wall Panels 2 In Thick 23.6 X 11.8 In Self-adhesive Black

4 PCS Acoustic Panels, 2 inch Thick 23.6 x 11.8 inch Fiberglass Sound Absorbing Panels, Self-adhesive Soundproof Wall Boards, for Studios, Office, Home Theater,Meeting Room, Black Silent Space Multifunctional Uses Secure Materials Easy & Quick Installation Multiple Color Options Aesthetic & Practical Set Quantity: 4 pcs,Color: Black,Item Model Number: KDLRB50-158-31,Item Dimensions (Single Piece): 600 x 300 x 50 mm / 23.62 x 11.81 x 1.97 inches,Net Weight: 4.36 kg / 9.61 lbs,NRC: 0.95,Main Material: 100% White Fiberglass Liner,Back Adhesive: 3M, Self-adhesive