The Tabletop Owl Rain Gauge is a great decorative rain gauge providing both form and function. The glass rain gauge vial (udometer) is easy to read and measures up to 7 inches of rainfall. The rain gauge vial / tube is designed with a flat bottom, providing more accurate rainfall measurements. This rain gauge features a study, heavy metal base so it won't blow over in the wind and a whimsical owl design to beautify your garden. The glass rain gauge vial (udometer) makes this rain gauge a wonderful decorative garden item, however be sure to bring the glass vial indoors when temperatures drop below freezing, when water turns to ice it expands causing the vial to break. If your rain gauge vial / tube should unfortunately break, Replacement Rain Gauge vials / tubes (udometers) are available in clear (SKU #227200) or amber (SKU # 220134) colors.