Cardas Soldering Wire Quad Eutectic Silver Solder with rosin flux 1/4 lbs (113g) roll Quad Eutectic solder 1/4 lbs (110 gram) roll contains a proprietary blend of silver, copper, tin & lead Quad Eutectic Roll Materials: Sn, Pb, Cu, Ag. Silver for higher conductivity and stronger solder joints Quad Eutectic Roll Melting Point: 364-384 F (185 to 195 C) Solder wire diameter: 0.032" / 0.8mm with rosin flux core Total wire length in a roll: around 92Ft (28M)