100% wool felt coasters, 3mm thick. This wool coaster set is naturally water-resistant and durable. It is not only functional but also a decorative piece for your dining space. The leather tab echoes with our specialty on leather products, which distinguishes our coaster design from any other ones. The leather tab brings up a luxury touch for this coaster set. Sold by: set of 4 Size: 4" Thickness: 3mm Material: High quality 100% wool felt, cow skin Maintenance: Wool felt should be dry cleaned only and ironed with steam on a light to medium setting. Hang dry only. Advantage: water-resistant, heat-resistant, eco-friendly Oeko-Tex Certified: Meets the human-ecological requirements of the Oeko-Tex Standard 100.