This is a small coil of Soft Solder Wire, LEAD-FREE type 96S – 96% Sn (Tin)/4% Ag (Silver) – 1.0mm diameter and 5 mtres length (approx. 35 grammes). It is a low cost effective alternative to hazardous lead-based soft solders. It has a melting range of 221 degrees centigrade and ifs fully RoHS Compliant. A suitable flux will be required but is not included.