The GreenCaddis tube box is a revolutionary new fly box specifically designed to store your tube flies while on the water. This double sided clear lid waterproof box incorporates 42 metal pins to hold your tube flies securely in place. It is 100% waterproof and will float if dropped into the water. Each side is protected by its own clear lid so you can easily see your flies without exposing them to the elements. The clear lid also allows you to easily grab the fly you need during that critical moment on the water. This rugged fly box has a sturdy metal hinge pin and measures 6" x 4" x 1.75".