AnnyMart Creative Stylish Desktop Droplet Glass Crafts Weather Storm Forecast Predictor Bottle Barometer with High Grade Packaging(large) The item will be shipped by Express Delivery,you can get it in 7 days. Storm-glass weather change predictor for anticipating storms,modeled after storm-glass instruments used in the 18th and 19th centuries Storms' electromagnetic fields create series of crystal structures in glass Enclosed in sealed glass chamber within beautifully crafted brass cylinder Large measures 8 inches tall and 4.5 inches in diameter; weighs 30 ounces.