1. Cork Coaster, Cork Cup Mat set 2. Materials: High density cork, Tinplate. 3. 4PCS per ... tin box, 4.Food-grade 1. NameCork Coaster, Cork Cup Mat set2. Welcome customers' designs. 3. Suitble for promotion, advertising, and ... , 6. Food-grade painting and coating. Cork Coaster / Cork Cup Mat in Tin Box