Premium silicone coasters, sleek and durable. High-temperature resistant, waterproof. Non-slip bottom for keeping the cups/bottles stable on any tables. Easy to clean with wet cloth. Color: Black Product Material: silicone which is non-slip. Diameter: 10cm; Thickness: 0.5cm Tabletop Protection: Protecting your hot drinks and tea pot from causing heat damage to your table. Size: Approximately 4 inches in diameter so they are Perfect for almost any size cup, bottle, or even mug. Application: Our silicone drink coasters are perfect for your home, office, or apartment. They make great gifts for friends and family. Packages include: 32 x Silicone Table Coasters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.