Size: 14.2 x 12.3 x 0.5 inches, pack of 12; Design: Hexagonal with beveled edgeThe studio panels are dense and thick; Great at cancelling room reverb, echoes, standing waves, and noise; These high dense panels can reduce unwanted echoes, reflections. Sound listens less harsh and much clearer after these panels installed on wall or ceiling.The soundproofing panels are Odorless, Non-toxic, and Formaldehyde-free. Excellent acoustic treatment for home theater, podcast, voice overs, recording studio, office, nursery, classroom and moreThe Sound insulation panels are easy to cut with a sharp knife and mount on walls ceilings with their adhesive backing.Perfectly good for video, audio recording, interview, meeting, podcast, , music, and gaming room.size:Side length 17.5cmMaterial:polyester fibercolour:aqua greyPackage Contents:12 * Sound Proof FoamOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.