Shootag for Horses - Double Pack (Protects 2 Horses From Flies and Mosquitoes for up to 4 Months) ShooTag Now Called 0BugZone - Same Great Product Chemical Free Fly and Mosquito Protection for Your Horse. Protects Your Horse Up To 4 Months Without Spraying Harmful Chemicals on Your Horse. Much Cheaper and Safer Than Sprays or Spot On Treatments.