Features:1. Birds don't like shiny, moving objects. This device can rotate 360 degrees and reflect different colors of sunlight to produce flashes and dazzling effects to scare away birds.2. By shaking in the wind and reflecting more sunlight, the perfect bird scaring pendant for pigeons, sparrows, chickens and woodpeckers. Also looks great as a pure hanging decoration.3. Easy to install. The package contains accessories such as hooks. The smooth edges and fine workmanship of the disc ensure a smooth assembly without hurting hands.4. Keep birds away from your houses, gardens, fences, roofs, orchards, yards, lawns, decks, boats, crops, etc.5. Very suitable for courtyards, orchards, vegetable gardens, parking garages, balconies, swimming pools, airports and other places that need to drive birds or decorate. Notice:Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description:Material: acrylicSize: 7.5cm in diameterTotal Length: about 41cmBattery: No Decoration form: hangingColor/Style: As the picture shownWeight: about 21g