The Rust comes in size Large (4.5" diameter), the Shale comes in size Medium (4.0" diameter), and the Ocean comes in size Small (3.5" diameter).
We hired a bison to step on these and he sprained a hoof. Our reels came through unscathed. Ok...we may be stretching the truth a little, but you get the idea. The Kodiak reel case is serious protection for your coveted hardware, available in three sizes to accommodate a wide variety of reels.