PREMIUM QUALITY - Our battery jumper cable clamps are built from high-quality copper. They possess excellent electrical conductivity properties and are encased with a comfortably grippable, insulating sheath, for safe usage. These rust-proof and durable clamps promise exceptional performance and an extended service life. ROBUST PERFORMANCE - Designed for heavy-duty applications, our jumper cable clamps are structured with a 1.2mm thick brass plate. Weighing 14 ounces (400g) and supporting a high current use of 500-1000 amps, they excel in low resistivity and robust handling, making them a reliable accessory for demanding tasks. SUPERIOR DESIGN - These clamps sport a strong and sturdy jaw, equipped with a powerful spring providing twice the power of regular jumper cable clamps. The robust teeth on the jaws will not bend out of shape when squeezed, ensuring a solid grip every time you use them. DIVERSE APPLICATIONS - Our versatile, powerful alligator clip connectors are widely applicable in various electrical engineering fields, electric welding machines, voltage testers. They are universally suitable for all car and truck batteries, making them an perfect accessory for a broad range of utility needs. The actual product may have slight color differences or differences, which does not affect use. Colour:black+red Material:copper Package Contents: 1 pair x battery jumper cable clamps 2 x battery cable ends 2 x setting-screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.