 Because they had no keel, stability was an issue, so they are not suited for voyage between main islands of Indonesia.They are used for middle-distance journey between Geser, Gorom, Watubela, Teor, Kei, Tayandu, Aru, and Papuan coasts.These boats are used for transporting passengers and cargo, and occasionally for fishing, turtle hunting, and collecting "agar-agar".