【Material】These high quality spiral rods are made from harmless PVC material that will not harm a single feather. 【Highly efficient】Dimensions: 30cm in length for a bolder and more visible look. 360° rotation, the bird repellent rotates with the wind, and the effect is more flawless. 【Protect your area】The multiple refraction angles of the spirals combined with the movements due to the wind scare and dazzle the birds and allow you to get rid quickly and once and for all of the nuisance caused by birds. Confuse and prohibit woodpeckers and other birds from adapting to the environment. 【Aesthetically pleasing】Scaring birds away from trees, the spiral bar will also allow it to be used to decorate your garden or farm . 【Reduce your losses】Easily hang and create a bird-proof zone to protect your home, garden, balcony, fruit trees, automobiles and equipment. For best results, please apply in direct sunlight and a breeze.