Shimano Bait Container Suction cup attachment for coolers Ideal for fishing for Japanese whiting, flatfish, croakers, etc. It has three compartments separated by walls, making it convenient to use. For example, you can put the next lugworm you'll use in the first compartment to temporarily store it after taking it out of the cooler, put stone powder in the second compartment, and other bait (krill, fish fillets, squid strips, etc.) in the third compartment. For those who don't want to drill holes in their cooler. Attaches with suction cups.