3pc Art Glass Fused 4" Square Green Swirl Coasters  Artisan

3pc Art Glass Fused 4" Square Green Swirl Coasters Artisan. Handcrafted coasters - fused glass, blue/green swirl design. Use for hot or cold beverages. Coasters have 4 rubber bumpers/pads underneath to help protect table surfaces. Fused glass - individually hand cut and designed, then kiln-fired for approx. 13-14 hours at 1300 degrees and then slowly cooled for proper annealing to ensure stability and strength and then placed back in the kiln for another 13 hrs to mold into shape. Food safe, handwashing recommended, no microwaving