Check the listing for details. Cardas Audio Quad Eutectic Silver Solder Rosin Flux Core 100" + Application Tool. Condition: New. Listed at 11.99 USD. Cardas Audio Quad Eutectic Silver Solder Rosin Flux Core .032 Dia100" Note the 2 pictures stating Kester are for are forillustration only ! ! !. You WILL receive Cardis Solder Pictures are of the original rolls. You will recieve a hand rolled coil in the length that is specified in this ad. This is easily the best solder I've used. The flow out is fantastic and makes a cold solder joint impossible unless you screw up from a lack of solder skills. The silver content is perfect and is proven by the bright silver color of the joints and testing a 5 foot length with an ohm meter against the other brands. The Cardas shows the lowest resistance of any solder out there. Clean the soldered joint with a q tip and alcohol to see the proof. I add a dab of rosin flux on old solder joints with unknown solder and this solder flows and blends perfectly. I ship in a #10 Plain white envelope to save you on mailing costs. If you want it shipped another way send me a note and I will quote the extra cost for mailing with a tracking number. Please do not pay any attention to E-bays suggested arrival times. I ship within 24 hours by First Class mail and the delivery times in the US are from 3 to 7 business days..tracking provided by “parcelsapp”. If the tracking number starts with a 0.