Function: Uses flying action to scare away deerfly. Dragonflies are the primary predator of deer and horse flies. Deer flies flee when they spot the fake dragonfly. Package: There are3 small dragonflies in four colors which make the garden or walls indoor look brighter. Color: blue, red, green. Material: The dragonflies wings are made from PVC waterproof material and the body is made from plastic. Function: Uses flying action to scare away deerfly. Dragonflies are the primary predator of deer and horse flies. Deer flies flee when they spot the fake dragonfly. Package: There are3 small dragonflies in four colors which make the garden or walls indoor look brighter. Color: blue, red, green. Material: The dragonflies wings are made from PVC waterproof material and the body is made from plastic.