SAFE MATERIAL: Silver Polyester Spiral Reflector is made of safe non-toxic plastic and will not cause harm to the environment and animals. Our bird repellers do not scare or harm birds, but humanely scare them by reflecting visible light. Can attract birds. They are double sided so they are more reflective and bright in the wind and reflect sunlight. Rotating in the wind, reflecting sunlight. Easy to install: no assembly required. They each come with durable nylon cords that can withstand high winds. Easily hang this bird hanger in your area in direct sunlight and breeze for efficient use. Wide range of applications: Reflective bird spinners are practical and decorative. Can be used on farm to protect rice and vegetables, or hang on fruit trees or vines, widely used in Leopard, Dowrdenschardn, Arn, CRP, boat or bird buggy to make your house, patio, lawn, pond or more beautiful. Our spiral reflectors use wind movement and light reflections to keep birds out. Featuring a smooth, reflective Mylar that easily spins in breezes to scare away birds, create lightning and protect your garden, farm and lawn. Quantity delivered: 3 pieces Product color: silver Product size: about 45*30.5cm