Nambe Butterfly 6-by-4-Inch Wine Coaster Namb Butterfly wine coaster; measures 6 by 4 by 2 inches Crafted of sand-cast metal alloy hand-polished to a bright gleam Excellent heat and cold retention; will not crack, chip, or tarnish Matches the Namb Butterfly bowls; wash by hand; USA-made Namb pieces are found in MOMA and other museums worldwide