Description Nettex Fly Repellent Advanced is a popular and trusted product containing powerful and long-lasting repellent. It comes in four handy sizes, making it easy to effectively repel flies, stable flies, and all biting insects, keeping your horse or pony comfortable and happy at all times. D.E.E.T based formulation. Added moisturisers, conditioners and natural extracts to assist with the longevity of repellency. Ideal for use where horses and ponies are kept in problem areas such as around ponds, streams and waterways that are heavily burdened with biting insects. Made in the UK.