 Dragon almost always includes a small amount of photo-etched brass in its kits.Originally Dragon relied heavily on photo-etched parts to model engine deck screens, but it has since expanded its use of photo-etching to include optional parts like chains and fenders.Photo etched brass parts are used in kits to make small or delicate parts that are harder to make in scale from plastic, such as miniature eyeglasses, medals, seat belts, machine gun mounts, intake screens, etc.