Fly Tags for Horses: Natural Horse Stall Fly Control The BioPower Stall Shield is a sturdy carbon tag that hangs in your horse's barn stall to repel horse flies, ticks, and mosquitos 24/7. It sends out natural energetic frequencies that repel pests, keeping them away from your horse's stable stall for 12 full months of fly protection. The tag uses no chemicals or pesticides, so it is non-toxic and completely safe for horses and people. It uses no electricity or batteries and no magnetic fields, so it does not require charging or maintenance. The BioPower Stall Shield provides a worry-free equine natural horse fly repellent in tag form. No need for fly spray or fly mask products any longer. Plus, we offer a 60 day money-back guarantee, so you have nothing to lose! Ditch the chemicals and try the BioPower Stall Shield, and if you're not completely satisfied we will gladly refund your purchase price. Features 100% natural prevention - no chemicals or pesticides Lasts for one full year 2.5 x 5 inch carbon tag is waterproof and durable Non-toxic, easy and affordable - safer, simpler and less expensive than conventional pesticide-based treatments Set it and forget it it - simply hang it in the stall and it works Uses our proprietary bio-resonance energy process Made with European craftsmanship at our workshop in the foothills of the Alps No risk 60 day money back guarantee Thousands of satisfied Pet Shield customers for over 10 years How It Works It is a sturdy 2.5 x 5 inch carbon tag that hangs in the barn stall. It contains special energy frequencies that are applied in our European workshop using our proprietary bioresonance technology. The tag emits these natural frequencies that generate an energetic field that keeps your horse from getting bothered by horse flies, ticks, and mosquitos for a full year. These bio-energetic frequencies are created from a modern, widely-recognized holistic health system called bioresonance that is commonly used in Europe today. Use one in each stall of the stable for maximum horse protection against flies all summer long. Instructions for Use Simply hang the tag in your horse's barn stall with the included chain. You may hang it with a nail, on a hook, or from any other object to which you can attach the chain. There is an initial 3 to 4 week activation period as the tag reaches its full effectiveness. But once that time has passed, you can expect your horse to enjoy maximum fly protection. For complete instructions and answers to frequently asked questions please go here.