This square glass coaster laser engraved with a "Twen-Tea" Flower Teacup Design is perfect for those celebrating their 20th birthday. This coaster is durable and stable enough for placing hot or cold drinks on. The bottom of the coaster comes with 4 small grips, located in each corner of the coaster to prevent the coaster from sliding or scratching the surface it is placed on. • Wipe Clean only • Not dishwasher safe • Suitable for home use • Dimensions: 10 x 10 x 0.5cm (3.9" x 3.9" x 0.2")