This cork-back coaster is a perfect match for your favorite mug. With our Blooming Larynx new theme, artsy and shiny to inspire your voice exercises! • Hardboard MDF 0.12″ (3 mm) • Cork 0.04″ (1 mm) • High-gloss coating on top • Size: 3.74″ × 3.74″ × 0.16″ (95 × 95 × 4 mm) • Rounded corners • Water-repellent, heat-resistant, and non-slip • Easy to clean