2x 7" Silver Rods 12 Gauge 99.99% High Purity Fine Soft Wire Colloidal ElectrodeThese are a pair of 7" (18cm), 12 gauge (2. 1mm) soft temper wire rods with 99. 99% purity. 99. 99% pure Colloidal Silver Wire Electrodes, used for generators of Colloidal Silver, the active ingredient form of silver. These fine silver wire rods are ideal for use in your home Colloidal Silver Generator. The temper of this wire is Soft. Our silver undergoes a first stage analysis and a second stage XRF analysis for the purity of the product. These