Item No NVK-5833 Description This is Novak's Lead-Free Silver Rosin-Core Solder. It contains 100 grams of solder, which is approximately 67 feet (20 meters), and is conveniently stored on a roll for easy access. This is the same solder that Novak uses. It is environmentally-friendly and specially formulated for hand soldering. It contains 3% silver for high-conductivity, low-resistance and for strong solder joints at a relatively low melting point. Meets RoHS compliance standards.