Mylar windmills are a simple and effective way to protect your farmland and orchard. Simply insert it around a fruit tree or vine, the bright lightning bolts will scare the birds away without any harm to the birds. Not only to protect your farm and fruit trees, it is also a fun DIY toy, kids will like it. Features: Simple and effective, mylar pinwheels can move easily in the breeze, causing flashes of light that scare birds away. Made of eco-friendly, non-toxic and durable reflective mylar. The reflective rotating steering wheel just scares the birds, no harm to the birds. Easy to install. Read the installation instructions and you can DIY them without any tools. When using, insert the windmills directly into soft ground or hang the spinner from trees. Can be used on farmland to protect rice and vegetables, or hung on fruit trees, widely used in vineyards, orchards, homes, gardens, barns, trees. Specifications: Material: reflective mylar material Item Size: 21.6 * 8in Package Weight: