Spiceberry Home Modern Glass Spice Bottles with Labels, 4-oz, Set of 12 Set of 12 modern design spice bottles, including bamboo caps fitter with air tight silicone seals to ensure freshness. Crafted from Borosilicate Glass, like French Press Coffee makers. This costly glass can is thin, light and durable. Includes a set of common and exotic spice labels, made from water-resistant glossy vinyl stock similar to bumper stickers. Opening is just wide enough for a teaspoon. Does not have a shaker screen. Borosilicate glass is highly heat resistant, however this product is not intended for stovetop use.