Many birds are afraid of flash, our whirl reflective pinwheel just scare the birds away, no harm for the birds. It's a simple solution to protecting birds and creating a free environment for birds.Easy to install, just insert the pile into the ground of the garden decoration. Very convenient garden decorations. Features - Color: Red, Yellow and Gradient Color.- Material:PET.- Size: About 53.00X24.00X5.00cm/20.83X9.43X1.97inch.- The pinwheel spins in the breeze, causing bright flashes of light scaring birds from the area.- This bird repellent device is also beautiful decoration for your garden.- They can also be used as an outdoor decor and a photo prop.-There are many uses, it can be used as the decoration of your garden, and it can also be used as a driving bird tool.- It can also be used for parks, farm, orchard, supermarkets, zoos, etc.Packing list: 3 x windmills