C&F Design CF-2500 Waterproof Fly Box Black, One Size A Medium-sized slit foam fly box for large and heavy flies, like streamers, stoneflies, steelhead patterns and bass bugs Three rows of long slits on each side will hold about 90 flies firmly in place 100% waterproof Size: 6.2 x 4.2 x 1.6 inches (15.75 x 11 x 4.1 cm.) COLOR: Black