vilz Pack of 12 Sound Absorber Panel Acoustic Made of Recycled Felt Acoustic Panels Sound Insulation 250 x 250 x 9 mm Colour Rock Grey : Amazon.co.uk: Musical Instruments & DJ
planeo Acoustic Panels Pro - White Oak 250 x 60 cm | 8mm felt backing - Wall Cladding
WAVE wool felt acoustic panels
BXI Sound Absorber - 400 X 300 X 9mm 6 Pack High Density Acoustic Absorption Panel, Sound Absorbing Panels Reduce Echo Reverb, Tackable Acoustical Felt Tiles for Ceiling and Wall Decoration :