Each round cork coaster is 1/4" x 4". Each pack contains 6 round cork coasters made from natural cork. Suitable for commercial and craft projects. Coasters take Heat Transfer Vinyl wonderfully. The coasters shown here are made with DecoFlock, which has a soft texture to it and is perfect for coasters as it takes in the condensation but dries quickly. Cork is a natural thermal insulator. Cork's natural properties resist mold and mildew and are hypo-alergenic. Round Corks are eco-friendly as no trees are cut down in the production of cork.