[Easy To Install] Self-adhesive design with glue on the back, easy to install on walls, ceilings, and other smooth surfaces. No additional adhesives or tools required. [Both Aesthetics and Functionality] The panel is designed for environments requiring acoustic absorption and visual sophistication, such as offices, meeting rooms, home offices, dining rooms, recording studios, podcasting booths, and more. Helps reduce echoes and noise for clearer sound. [What's the Effect] Tiles provide an elegant acoustic solution for various spaces. High-density construction helps reduce background noise, echoes, reverberation time (RT), and standing waves, improves speech intelligibility, and enhances sound clarity. [Specification] High density - 200kg/m³; Dimensions - 12 x 12 x 0.4 inches (30 x 30 x 0.9 cm), pack of 12, covers 12 square feet; Weight - 3.3 pounds for 12 pieces. [Why Acoustics Are Important] Excessive noise and poor acoustics can negatively impact productivity, communication, and concentration. Use an appropriate number of tiles and coverage area to create a comfortable acoustic environment for work and home. Color: White Material: Polyurethane Size: 30 x 30 x 1 cm Package Contents: 12 x Acoustic Foam Panels (other items not included) Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error allowed is +/- 1-3 cm.