This product is a household bird repeller, made of high-quality materials, very sturdy and durable, suitable for transmission towers, iron towers, substations, farms, orchards, fish ponds, warehouses and other places Color: Silver Material: Stainless steel Size: about 18x40cm High-quality materials, waterproof Rusty and durable. Suitable for transmission towers, iron towers, substations, farms, orchards, fish ponds, warehouses and other places. Easy to install and use. Powered by wind, has strong bird repelling effect. Portable and compact, very professional and practical. Only 2-3 wind starts per minute. 30-50 turn 360 degree reflection angle, no driving blind spots, high wind products adopt damping coefficient design, have wind resistance effect, safe and reliable. Maintenance-free, with a lifespan of up to 5 years, passive wind energy, the clean and environmentally friendly bird repeller covers an area of bout 20-30 meters, and is more effective in open and ventilated places.