Hamilton Fly Mask for Horses Without Ears - Small - Pink Diamond by Hamilton. $17.49. Easy to clean mesh material - Just hose off!. Comfort cotton trim - provides comfort and coolness. Durable Netting - Protects eyes from ultraviolet rays. Available in small medium and large, with and without ears. Quality, comfort and style,  Hamilton Products fly masks are ideal for your horse.  Available in many styles and colors.  The adjustable fasteners are heavy duty with double elastic ...