Check the listing for details. Natural Deerfly Repellent, Lifesize Dragonfly Predator, Motion Activated Replica. Listed at 11.95 USD. Chase Deerflies away with their natural predator...a DRAGONFLYA Natural, Non-Chemical Deer Fly Control. Mounts easily to a cap, visor, or headband.Mounted with High Tensile Strength Spring Wire...Motion Activated.An exact life size replica of a real dragonfly. Easily applied to your cap.No chemicals, no odor, safe to use.(not included) Re-usable. Made in the USA Scare Deerflies away with their natural predator...a DRAGONFLY ! This life size motion activated, real-life dragonfly replica is mounted on a light wire and is easily pinned to your cap, visor, or headband (not included) As you move, the dragonfly "scarecrow" waves and bobs around your head, scaring off any deerfly nearby. It is durable enough for many seasons of use. Simply apply it to your cap or visor and forget it. Deerflies nearby will be frightened away. You don't even know it is there.