Description [Stainless Steel Material] This battery load tester is made of premium stainless steel, which is suitable for heavy-duty use. The surface is perforated to provide ventilation and avoid overheating to ensure safe and stable operation. [Main Function] Our battery load tester is mainly used for testing battery condition, load, starter motor pull and complete charging system diagnostics. It fits for efficiently discharging and determining if a battery is good. [Easy to Carry] The product comes with an insulated handle on the top for safe and comfortable carrying. The copper clip comes with red positive and black negative rubber clips that effectively designate where the test clip should sit on the battery terminals.