Package content:Set of 12 wind spirals made of plastic. Length: 30cm. Including rubber cord extra. Good Effective:Multiple angles of refraction points combined with wind motion to scare, confuse, and prohibit birds from adapting to environment. A disc and tape alternative.Note: for better results, please apply in the direct sunlight and a breeze. Wide Range of Use:Easily create your anti-bird zone and keep unwanted pests at bay from your home, garden, balcony, fruit trees, automobiles, and equipment. Durable Material:Reflective Bird Repellent made of highly durable plastic material construction for long life.Scare birds in environmental way. These plastic spiral bird scare tape are made from innocuous material that will not harm a single feather. Also use as a deflector to alert birds and prevent window strikes without any harm to birds. Double Functions:Double functions as a bird deterring device and a decorative ornament to beautify your surrounding home and garden.