Bullet Weights Tungsten Screw-In Weights are bullet-shaped sinkers with a stainless steel corkscrew on the end, allowing you to easily thread and anchor your favorite plastic bait. This design also prevents damage to the line by eliminating the need to peg the weight. These weights include a plastic insert, which is essential to prevent the line from twisting around the corkscrew. Stainless steel corkscrew device on the bottomEliminates the need to peg the weight and prevent the line from getting cutWeights include a plastic insert that prevents the line from twisting around the corkscrew