A fly case in which two streamer system foams are set in a foam changer. Push the hook bend into the slit guide and set the fly. Since the hook points are not inserted directly into the foam, the foam will not be damaged.
By combining various system foams (sold separately), you can use it in a variety of customisations
Color: Black - Size: S , M , L
Color: Olive - Size: M
Color: Orange - Size: L