The retro red coasters are 100% wool felt.
The blue ones contain some acrylic felt.
Looking for something different to dress your side tables with? It doesn't get much more unique than these coasters! I
am happy to make custom sets in a colour or colour range of your choosing. Feel free to spot clean with a damp cloth. If they get fuzzy clean them with an electronic garment shaver. If they get dusty run over them with a sticky clothes bush.