Highly Effective - Large 15 inch size for a bolder and more prominent bird-scare look. Multiple angles of refraction points combined with wind motion to scare, confuse, and prohibit woodpeckers and other birds from adapting to environment. A disc, tape, and decal alternative. *Note - For best results, please use with direct sunlight and a breeze. | Protect Your Assets - Easily create your anti-bird zone and keep unwanted pests at bay from your home, garden, balcony, fruit trees, automobiles, and equipment. | Non-Toxic and Humane - Scare birds the responsible way. These plastic spiral rods are made from innocuous material that will not harm a single feather. Also use as a deflector to alert birds and prevent window strikes. | Aesthetically Pleasing - Double functions as a bird deterring device and a decorative spinner ornament to beautify your surrounding home and garden. | Money Back Guarantee - We stand behind our product. Make your purchase with confidence; if you are not fully satisfied, please return it for a full refund.