2" Audible Visual Bird Scare Flash Sound Emitting Tape Deterrent Pigeon Bird 100m The tape is special designed to flap and flash the birds when string loosely between fixed points, dangle over crops or draped over fruit trees and grape vines The tape flashes to reflect the sunshine accompanying crackling sound in the breezes to deter birds The tape is silver on one side and red on another Humming sound and flashing light to deter birds Effective for both low crops and fruit trees