The Promar Descending Device is ideal for releasing small and over-limit rockfish without harm. Simply add a weight (not included), pierce the lip of the fish, and allow it to swim back to the bottom with your bail open. Once it&';s there, a couple jerks of the rod tip will free the fish, and you&';ll be ready to reel in and continue to fish. Perfect for complying with California regulations. Made with high-quality material. Allows you to release rockfish safely Complies with California regulations High-quality materials Easy to use