Kvadrat - Tonus 4 - 654Kvadrat Tonus 4 is a renewed and expanded color series of the originele Tonus collection, designed by Nina Koppel. This upholstery fabric is loved for its striking and unique colour palette, which includes a rich variation of earth tones and gold tones. With 90% wool and 10% Helanca, the fabric is ideal for covering seating furniture. Thanks to the choice of no fewer than 47 different colours, Kvadrat Tonus 4 is extremely suitable for both