Specifications:Nickel is magnetic at or near room temperature.These pure nickel strip can be used for directly spot welding battery cells.Nickel strip is commonly used in battery building due to its ease of use in spot welding and soldering as well its high corrosion resistance over time.Item Name: Nickel StripMaterial: MetalQuantity: 1 RollFeatures: Convenient to Use, Machine Battery WeldersSize 8mm: 0.15mm x 8mm/0.01" x 0.31" (Approx.); Length: 10 meters/393.7"(Approx.)Size 10mm: 0.15mm x 10mm/0.01" x 0.39" (Approx.); Length: 10 meters/393.7"(Approx.)Size 15mm: 0.15mm x 15mm/0.01" x 0.59" (Approx.); Length: 10 meters/393.7"(Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Roll of Nickel Strip