Rapala Knives - 50 lb Sportsman's Digital Scale with Gray Plastic Casing & Stainless Hook. Model: NK07041. Large digital display. Measures in both pounds and kilograms. Tare weight feature allows fish to be weighed in a container without including the weight of the container in the reading. Requires one 9V battery (not included). Up to 500 hour battery life. Battery life indicator. Four minute automatic shut-off. Hang packaged.