Wires for cartridge. length 4.5 cm made entirely by hand, each set wire is soldered with silver pond. The wires are made of OFC copper silver plated , teflon coated . For which extremely soft. The Clips are made by us with a proprietary mold, produced in phosphor bronze, highly elastic material, much more valuable than non-elastic brass. 24k Gold Plated. They accept pin diameter 1.17 1.24 so they fit most of the heads on the market. Product of Absolute quality Made in Italy