Features: Experience enhances welding efficiency with our automatic triggers design, specifically engineered for professional spots welding of 18650 batteries. This handheld spots welding pen features a sleekly exterior and is crafted from durability metal, ensuring long term stability and reliability during use. Ideal for electronics enthusiasts, DIY project makers, and small scale electronic repair technicians seeking precise and ease. Perfectly suited for home workshops, electronics laboratories, and environment focused on battery assembly and repair tasks. Elevates your welding projects with this versatile tool, designed to meet the demands of both hobbyists and professional in need of reliable spots welding solution. Specifications: Component:Metal Size:Approx.125.7x41.5mm/4.95x1.63inch 5Option Color; Package Includes: 1pc Welder Pen 2pcs Concentric Ball Needle 2pcs Spring 1pc Wrench note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.