These silver pinwheels are made of flash silver polyester, which is durable, shatterproof and weatherproof, eco-friendly and non-toxic. Size: 52*18cm; birds eyes, birds are prevented from flying out of the area.Without chemical and technical elements, they do not harm birds. Nice and practical.These wind turbines are easily inserted into the ground and will decorate n any garden while driving away pests. The items you receive need to be assembled by yourself. Just refer to the operation diagram: install the wind turbine one by one, then install the rod. This reel can be used for farms, to protect rice and vegetables, or to cling to fruit trees and vines.for balconies, roofs and windows and other courtyards. Product In light of the opposite of visual confusion of the bird, the result of fear. To achieve the effect of drifting birds. Free of chemical and technical elements, controls pests in a natural way. Even if exposed to sunlight or rain, the reflective properties are retained for many years. Descriptions:Material: PET Specification: 7 blades/group Size: 52*18cm Silver color Scope of application: farmland, orchard, garden, lawn, etc. Working principle: by reflecting light (or rotating reflections fromTwo sides of different colors) to achieve the effect of repelling birds. Stream Content: 6 sets * Bird Repellent Windmills Sold by Briday Store