Fly patch that is easy to place on the center of the chest, such as a fishing vest or lanyard.The micro-slit foam inside the chest patch can be used as a fly box to store unused flies, making it possible to change flies without the hassle of opening and closing the zipper.Use flat foam outside the main body to dry used flies.Comes with six neodymium magnets inside and one small neodymium magnet will function as fly catchers.