Picasso&';s Tungsten Worm and Flipping Weights are manufactured from the same molds Tru-Tungsten used. Picasso created the fray free/ insert free manufacturing processes for Tru-Tungsten and that same process continues with Picasso&';s Tungsten Weights. These weights get further process and quality control in our own facility in the USA, just as we did for True Tungsten. This is to assure every weight going into a package is of the highest quality and completely fray free. Made from 97% pure tungsten for the greatest sensitivity and allows the angler to detect subtle bites that would otherwise have been missed. 1/16 oz - 5 pack 1/8 oz - 4 pack 3/16 oz - 4 pack 1/4 oz - 3 pack 5/16 oz - 3 pack 3/8 oz - 3 pack 1/2 oz - 2 pack 3/4 oz - 1 pack 1 oz - 1 pack 1 1/2 oz - 1 pack 2 oz - 1 pack