Chrome stoppers are for short term storage (that bottle of red wine that you just didn't finish). Sulfuric vapors from red wines and vinegars can cause pitting in the finish if left in the bottle too long; schnapps, liqueurs, and brandy will be fine for long term use. The glass 'pyramids' at the top of each stopper are 1" tall and 2" square; each layer is a durable 1/4" thick. Available in 12 color combinations.