This hock wrap is recommended for treatment of varying hock issues. It generates blood flow to help relieve pain in arthritic hocks as well as aiding in the prevention of injury when used on healthy hocks. Standard Size. Classic Equine recommends using MagNTX products for a minimum of 30 minutes and no longer than 12 hours at one time. Ideal treatment periods will vary on a case by case basis. Ensure that the horse is adequately cooled down after a workout before applying magnets. Do not use any oil-based or abrasive liniments under MagNTX products, as these substances can cause damage. MagNTX magnets can be used in conjunction with preventative and treatment regimens. ALWAYS consult your veterinarian when using magnet regimens.