8 Leaves Bird Repeller Windmill Spinner DIY Birds Deterrent Silver Pinwheel for Garden Lawn Yard DecorationWorking Principle: Through the reflection of light (or reflective rotation of two sides of different colors), the bird's vision is confused and chieve the effect of frightening and deterring birds. Specification: Material: environmental protection PVC Size: 48X18cm/18.9X7.09" Color: silver Pattern: small dots Performance: with strong laser reflection effect Install and use method:1. When using it, put it directly into soft soil or hang it.2. Through the reflection of the sun's rays, it can achieve the effect of frightening and repulsive birds.3. In windy conditions, bird repellent blades will also emit a clear, metal-like sound, deterring birds from moving away from the area. Usage: Used in agriculture such as rice, vegetable garden and other fields. Used on balconies, roofs, windows, etc. in the courtyard. It can also be hung on fruit trees or grape branches, gardens, lawns, ponds, airports, etc. Birds and other small animals can drive away. Note:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-3mm measurement deviation due to manual measurement.1 X Bird Repeller Fan1.