Great for spot treating sound on walls in your studio or office-For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Offices. Reduce Unwanted Noise And -The panels help reduce reverb, flutter echoes, undesirable acoustic reflections, unwanted noises and are best for small to medium size rooms, theater rooms, recording studios, churches, or offices. Make Higher Quality Audio and Video Recording-Improving your audio quality instantly by reducing background noise and while recording your voice overs, music, interviews, podcasts, or videos. Use to spot treat a professional or home recording studio, commercial or home office, rehearsal space, or home theatre. Easy to shape and cut to size, altering 't affect performance. Professional Studio Grade Acoustical Treatments, Create Beautiful Recording Environments! Acoustic foam is used to remove reverberation and sound reflections, provide sound insulation industrial and domestic applications suitable for sound studios. Unlike polyurethane foam, fiberglass and rock wool have health risks. Colour: black Material: polyurethane Size: 30 x 30 x 2.5cm Package Contents: 24 x Soundproofing Foam Only the above package content, other products are not included. Note: Light reflection 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.