Do it Rosin 95% Tin, 5% Antimony Lead- Solder, 4 oz. is a high-quality solder designed for reliable, lead- applications. Composed of 95% tin and 5% antimony, this solder ensures strong, durable joints while meeting safety standards. I for various electrical and electronic projects, it provides excellent flow and easy use. This 4 oz. solder is for professionals and hobbyists alike who need a dependable and efficient soldering solution. Model Number: 53477