The Universal Acoustics Mercury Diffusor brings dull sounding rooms to life! The Mercury diffusor can easily be mounted on walls and ceilings using non solvent based adhesive and provides arresting benefits for the acoustics of both domestic and professional settings. The Universal Acoustics Mercury Diffusors surface is marked with the characteristic undulation of the Mercury range. Rising above the flat surface are peaks of 30mm and troughs of 20mm that help diffuse equally around the room. The product itself is made from Fire retardant Expanded Polystyrene ensuring safety befitting both home and public environments. The Mercury Diffusor can even be painted with water based emulsion for aesthetic effect. Features and Specifications Material: High density polyester based foam Includes: 20 x Mercury Diffusors (300 x 300 x 80 mm) Compatibility: Can be effectively used alongside other acoustic treatment products. Installation: Easy installation on most surfaces using Cosmic Fluid liquid adhesive Colours: Available in White