Material Plastic Number of Pieces 12 About this item Included in the package: The package contains 12 x 30 reflective screw rods, 5cm, these plastic screw rods are made of harmless PVC. It will not cause any harm to birds, protect wild animals or pollute the environment. Absolutely effective: easily create your own bird-proof zone and keep unwanted pests at home, Easily keep unwanted birds and pests away from your home, garden, balcony, fruit trees, machinery and equipment. The reflective wind spirals are hung at a distance of 50cm, and the birds are dazzled and dare not approach. EASY TO USE: Each silver reflective wind spiral has an elastic loop, which is very convenient to hang. Easy to hang, remove and move to your next bird-free area. Nice decoration: use in a well-lit and ventilated area for best results. Not only do these hanging repellents repel birds without harming them, but they can also decorate your house, garden and farm. WIDE USE: Keep birds away from your house,