FlyRid Roll-On from Durvet is an insect repellent for horses made with essential oils and designed to repel ticks, biting flies, mosquitoes, and gnats. FlyRid Roll-On contains ingredients which are safe for horses and their handlers. The roller-ball applicator allows for non-messy, targeted application. Essential oils offer a pleasant, natural scent. Made in the U.S.A. Directions: Brush horse thoroughly to remove excess dust and dirt. Apply directly onto coat prior to riding, showing, or turning out. Do not put in eyes or mucous membranes. Use a soft cloth to apply to the face and other sensitive areas.