Sputnik sinkers, also known as spider, hurricane,. or breakaway sinkers. The wires are locked into place with tubes or beads. The tube versions are much better at staying locked in place.
When you retrieve your rig or catch. The wires fold back (break away) making for easy retrieval.
A sputnik sinker can out hold all the popular surf fishing weights; Pyramid sinker, Frog tongue sinker, storm sinker, and surf claw sinker.