Size: All types of cups are 4.7 inches (about 11.9 cm) and come with two snail tea bag hooks, so you don't have to worry about tea bags falling into the cups while brewing.Non-slip and heat resistant: The silicone coaster is very non-slip, so you can also use it to open the jar. The heat insulation and heat resistance won't burn the table surface, and it's easy to clean.Wide range of applications: Silicone coasters are great for bars, restaurants, sinks, offices, home tables, or as a mobile gift for friends.FURNITURE SURFACE PROTECTION: The soft coaster material will protect your favorite indoor or outdoor furniture table tops from damage. Black is also a great match.Fluted design: The fluted design of the bar coaster prevents condensation on the wall of the cup or residual liquid on the wall of the cup from staying on the table, thus effectively avoiding the hassle of cleaning coffee and tea stains from the table.