Coasters - Slate Stone - Set of 4

Modern Design: These Castoff Concepts all-natural slate coasters, with rough irregular edges, maintain the stone's natural appearance. The simple yet classic design of this rock coaster is the perfect complement to your kitchen, living room, dining room, and home bar.Easy to Use and Clean: Slate has a hard, scratch-resistant surface and it is easy to clean (just rinse with clean water). Slate is a strong and durable material that prevents liquids from leaving any stains on the surface. The bottom of the coaster has non-slip round mini cushions to avoid scratching the furniture and provide stability to prevent unnecessary spills.Perfect Size: Standard square size, 4 x 4 inches or 100mm x 100mm. It fits most cup sizes such as coffee cups, tumblers, beer mugs, wine glasses, and spirits glasses (rocks glasses, tasting glasses).Wide Application: This solid black slate rock can be used not only as a coaster, but also for arts and crafts classes, painting, writing, DIY supplies, sculpture, ph