Dalmore Whiskey Promotional Coasters These coasters are a substantial 9.3cm in diameter and have a good weight to them. There are two coasters. One is unopened, while the other was opened for photography. Both are unused. - Brand: DALMORE - Design: Silver and black coasters - Material: Unknown (metal?) The black part appears to be embossed resin. The back has a non-slip black flocked fabric. They come in a paper box with a plastic sleeve.