Wind turbines are a simple and effective way to protect your fields and orchards. Simply insert it around fruit trees or vines and the lightning will scare the birds away without harming them. Not only will it protect your farm and fruit trees, but it's also a fun DIY toy that kids will love.Feature:Bird repellent for nature and humans. Also a great decoration for your backyard and garden. Holographic pinwheels spin in the breeze, causing flashes of light to scare birds away. Made of eco-friendly, non-toxic and durable reflective polyester film. Easy to install . Read the installation instructions, you can DIY yourself without any tools. To use, insert the windmill directly into the soft ground or hang the spinner on a tree. It can be used in farmland to protect rice and vegetables, or hung on fruit trees, widely used in vineyards , orchards, homes, gardens, barns, trees.feature:Material: reflective mylar materialItem Size: 127 x 25.4 mm/5 x 1 inchProduct Weight: 312 gramsPacking List:8 * Mills windscreen Mylar