Who doesn't love to watch the Humming birds do their crazy dance in the air? The colors are brilliant and look beautiful as they spin in the wind. With two different designs it's like getting 2 for 1! This is an 8" 3D Aluminum metal Wind Spinner for your yard, garden or even indoors. They are made of thick aluminum material, making them resistant to the impact of climate changes and external environmental factors. When you receive your spinner you just spread the sides out in opposite directions so the wind can catch it and spin it. Each one also comes with it's own 360 degree spinning hook. If there is severe wind and/or weather I would suggest bringing it in, like you would your wind chimes.