50g/roll Rosin Core Soldering Wire with Flux Reel, Parameters: Tin 63% Lead 37% (Sn63-Pb37),  Flux Content: 1.8%,  Melting Point: Soldering Wire 361F/183C,0.8mm(0.0315inches), Gross Weight: 50g(0.11lbs/1.61Ounces),  Soldering Wire Reel Size- 55mm dia x 30mm(2.165in dia x 1.181 in),  Package: 1 pc x 0.8mm 50gram Solder Wire Spool,  Special Features: Perfect soldering capability, Lower melting point, Soldering Flows more smoothly, much stronger soldering point, easier to use, Full refund guaranteed within 30 days if you are not satisfied with the quality. California Prop 65 Warning: The wires of this product contains chemicals known to California to cuase cancer and birth defects or other reproductive harm. Remind to wash your hands after using it.