Niter Guard Deluxe holographic flash tape scares animals with light, movement and noise. The extra wide, heavy duty iridescent foil tape works well to keep hawks away from your garden. The tape produces a loud crackle noise and bright flash. This is noisier, brighter and lasts longer than ordinary flash tape. Instructions: we recommend that you cut 5 - 6 strips about 30" long. Place the strips in the area where you are having daytime predator problems. If you are using the tape to protect from birds or hawks, place the repellent tape strips 6 - 7 ft. above the area to protect. For ground predators, place at eye level, 20 - 25 foot intervals around and within the area you are trying to protect using shorter strips.