Echo Valley 4354W Illuminarie Dragonfly Dual-Motion Windwheel Dragonflies on the front and rear Wind Wheels are oriented to catch the wind on a gusty day and rotate opposite each other Powder-coated and hand-welded to ensure years of use and enjoyment Product is stationary and must face the direction wind is coming from for movement to occur Center glass orb absorbs sunlight during the day and emits a soft, subtle green glow at night. Glow will only occur within the green swirl portion of the globe and is comparable to the glow seen on a watch face piece Note: For best results, place windwheel in a location where it will receive no competing light source at night. Glow will gradually fade over time.