The Personalized Corporate Logo Marble Coaster is a classy and practical gift for clients, customers, or anyone who has supported your company. These coasters make for excellent promotional items, showcasing your brand in a sophisticated way. Crafted from tumbled marble tile, each coaster has a natural stone finish, which means variations in color, texture, and edging are to be expected. Cracks and flaws add to its unique character. Measuring 4" x 4", each coaster includes an adhesive cork backing strip to protect furniture surfaces.