The C&F Design CFGS-3500 is a beautifully designed fly box, called the Large Grand Slam Box. The large waterproof C&F boxes are made from durable ABS plastic with rounded edges and a ripples surface for ease of handling. Three rows of slits on both sides make this perfect for large saltwater streamers, such as for tarpon. The slit pitch and foam thickness are designed to hold heavier saltwater hooks.