You can choose between 2 rod rests and 4 rod rests to suit your fishing style.BK-021W has rod rests in 2 places, BK-024W has 4 rod rests. This rod rest has a separate structure with two parts, the top and the bottom, and it also contributes to weight reduction by using the minimum amount of resin compared to common cylindrical types. Separate parts also have the advantage of being easier to clean if the inside becomes dirty. In addition, a drainage hole is installed on the bottom of the rod rest, so water can drain away without accumulating when you get hit by waves while traveling by boat or when it rains. It depends on the number of tackle the angler brings, but for fishing etc., choose a 2 rod rest model, or if you bring 2 each of spinning rods and bait for sea bream mule, metal sutte, super light jigging etc., choose a 4 rod rest type. That would be good.