Riverside by Seattle Sports bilge balls silver/green 2pk Is great for fun on the water but also practial for removing water from your kayak or canoe. Soak it. Chuck it! Bilge Balls add a bit of fun to the cleaning process. Sponge up excess water from your boat then chuck it to an unsuspecting passerby for some friendly fun. Great for kids these bilge balls float and are soft squishy balls for tossing around the pool lake river or from your kayak or canoe.