The C&F Design CF-2500 is a medium waterproof fly box with durability and stylish class. These waterproof C&F boxes are made from durable ABS plastic with rounded edges, a silicone tube seal and a rippled surface for ease of handling. A great pocket sized range of fly boxes for fly vests. A medium sized slit foam fly box for large streamers, stoneflies, steelhead patterns and bass bugs. Three rows of long slits will hold up to 90 large flies firmly in place in high winds.