Made from 97%, Eco-Friendly, Pure Tungsten, X Zone Tungsten Worm Weights present in a traditional shape and are available in two colors: Chip Proof Matte Black and Green Pumpkin. Tungsten worm weights are 40% smaller than lead product and this gives them a smaller profile for easier vegetation penetration and a stealthier overall profile. The density of tungsten material increases sensitivity and feel significantly resulting in you detecting more bites and catching more fish!