The Illuminarie Hummingbird Anemometer Stake is a piece of metal garden art that is attractive, eye-catching, and mesmerizing to view, making it a great conversation piece. It is an ideal garden accessory focal point for any outdoor landscape setting, as the eye is naturally drawn to it - especially when it's in motion. The self-orienting spinners rotate effortlessly in the slightest of breezes. Durable, electroplated and powder-coated parts will provide years of use and enjoyment. Luminescent crystals in the hand-blown art gazing ball absorb the Sun's energy during the day and release a subtle green glow at night lasting up to 4 hours, gradually fading over that time. Measures: L 8" x W 8" x H 34"