The Hurricane Salt Tackle Sputnik Sinker Fishing Weight, 4 oz. prevents your weight from moving in the surf. The stainless-steel arms lock in place and anchor in the sand. When you are ready to retrieve, pull on the line and the arms snap open to allow for easy retrieval. A simple solution and a great innovation, these Sputnik Sinkers will allow you to fish in less than ideal conditions. These are essential to any tacklebox, get yours today!