product description: 1. [Safe and non-toxic] Made of environmentally friendly metal screw rods, it will not cause any harm to animals, this bird repeller reflective device can also be used as a deflector to remind birds and prevent windows from hitting 2.Your Ideal ChoiceProtect your delicate gardens, swimming pools, crops, vehicles, swimming pools, boats and other valuable assets and properties with this effective bird repellant, ideal for placement in front and back yards, decks, Swimming pool, garden, etc. 3.Effective functionThe function of the product is to rotate under the influence of the wind to produce a spiral shadow, and to produce a strong reflection, which makes the birds too dizzy to approach. Please use with direct sunlight and breeze. 4.Decorate Your HouseIn addition to helping create your bird-proof nest to deter unwanted birds, insects, and pests, this charming twisted bird repeller is a decorative rotating ornament perfect for hanging outdoors 5.EASY TO USEJust tie this reflective and twisted bird horror device to your porch, yard, deck, swimming pool, garden, no hammers, nails and screwdrivers required, it can be easily installed.