After observing the garbage station in Tsuruoka City Hall in Yamagata Prefecture, it has a remarkable repelling effect of crows " H.21.11.9 - This product has demonstrated an amazing repelling effect at the Fukushima Prefecture General Center Rien. Certificate issued H.22.3 For those who want to protect crops from crows before harvesting. For those who have not been able to repel crows until now. For those who cant get a good nights sleep due to the sound of a crow. ● Those who have trouble getting ruined by the garbage collector. ● Those who suffer from crows droppings. For those who want to protect the swallow hina from crows. Please do not accept crows. Most repel when installed correctly. 1. Product characteristics: Crows are the next place in chimpansies, and they are said to show rainbow in 10 to 14 colors. This means it has an advanced vision that can distinguish ultraviolet rays. However, it is a weakness point and has a strong warning on objects that constantly change wavelength, and will not get close to a certain distance. "Why crows escape? Reflects light in each direction with different frequencies and wavelengths It is said to be like you had a distant headlight on the road at night. You will feel like you lose your standing position in a moment, but it is said that a crows flying in the sky never see. If you install many more, you will not be able to see the crows around you. Example: Shigamato, Tsuruoka City, Yamagata Prefecture. A place where more than 1000 crows gather on the wire. There are 5 places in 150 m (150 m) to prevent leaning. 2. Safety: Made of polyester that is gentle on people and crows, and is soft and does not conduct electricity, so you can rest assured that your baby can hold it. 3. Durability: There are examples that have been working out for more than 3 years without leaving outdoors. After harvesting in the farm, you can use it for a long time. 4. Precautions for Use: (1) Ensure that the crows view is fully visible. (2) The hanging frame sways with the wind. (3) More than 90% can be repelled immediately, but if the effect is not visible even after a week depending on the presence or number of frays, the following measures are necessary. If you are in doubt, please send us a few images for installation. Our staff with 15 years of rich experience will provide you with specific free advice from the complete rejection.