Perfume Studio 2 Oz. Cobalt Blue Glass Spray Bottles. (4 Units, Black Fine Mist Sprayers) Perfume Studio SMALT BLUE COBALT Premium Quality Blue Glass Bottles with Black Sprayers You Get a Set of Four (4) Pieces ~ 2 Fluid Oz. Bottles with FIne Mist Sprayers DIY Spray Blue Bottles. Great for thin liquid applications, essential oil blends and formulas Durable and Reusable Cobalt Spray Bottles / INTERCHANGEABLE TOPS Bottle Size: 1.5" width by 3.75" height