The Ardent SmartCull Professional Culling System is a first-of-its-kind, 2 stage system that allows you to cull by color and weight. A series of 6 highly buoyant, impact-resistant balls eliminate the need for markers, charts or computers. The easy-to-read numbers record up to 15 pounds, 15 ounces, and setting weight on each ball is quick and simple. No more re-weighing, extra handling or extra stress on fish. Thanks to the SmartCull Professional Culling System, it's never been easier to make sure you're keeping the best and getting rid of the rest. Set of 6. Specifications: Culling Balls with locking pound and ounce selectors No charts, cards or markers to lose or replace Compatible with live well additives Durable clip and cable with protective coating Large numbers to identify weight quickly Reduce fish stress by weighing only once Manufacturer model #: 2100.