Safety material: The silver polyester spiral reflector is made of safe and non-toxic plastic, which will not cause harm to the environment and animals. Our bird scare device does not scare or harm birds, but humanely scares them by reflecting visible light. 6 Inches High: Silver Garden Spinner is approximately 6 Inches high 6 inch to attract birds away. They are double-sided, so they are more reflective and brightened up in the wind and reflect sunlight. Spinning in the wind and reflecting sunlight. Easy to install: No assembly required. Each of them comes with a durable nylon thread that can withstand strong winds. Hang this bird hanger in your area easily in direct sunlight and breeze for efficient use. Wide Application: Reflective Bird Spinner is practical and decorative. Can be used in farms to protect rice and vegetables, or hung on fruit trees or vines, widely used in leopard print, Dowrdenschardn, Arn, CRP, boats or bird carts to make your house, a terrace, a lawn, a pond or more beautiful. Repous Birds: Our spiral reflector uses wind movement and light reflection to keep birds out. With smooth reflective polyester film, can easily rotate in the breeze to scare birds away creating lightning bolts and protect your garden, farm and lawn. Scope of delivery: 3 set of pieces