Features:  1. The garden butterflies are made of good waterproof PVC material, the wings of the butterfly stakes can be pushed open or shut for varied display; Waterproof material make it suitable for both indoor and outdoor. 2. The the spring on the stakes makes it vibrate with the wind when it blows, just like a real butterfly.  Specifications: Material: PVC, plastic, metal    Package contents: 20  x Garden butterflies