The Craftsman USA Lead-Free Acid Core Solder is a high-quality soldering tool made in the United States. With a diameter of .062 inches and weighing .90 ounces, this solder is ideal for various automotive and craft projects. The lead-free formula ensures safe and efficient soldering without the risks associated with traditional lead-based solders. This product is a must-have for anyone working on vehicles or engaging in DIY projects that require precise soldering skills.