Set of 12 Cocktail Ice Cube Trays - Each large Cocktail Ice Cube Tray (each makes 4 cubes) is made of silicone and packaged in a vintage style box that is a throwback to the 1960's "Mad-men" era of classic cocktails. A real asset to any home bar. Each Cocktail Ice Cube Tray costs $6, with an msrp of $12. Large ice cubes don't melt as fast as regular cubes (and won't water down your drink as quickly!). - made of silicone - dishwasher safe Comes in fantastic countertop display box that holds 12 units.