Gardner Bender 3 In. 30A Heavy-Duty Battery Clamp, 2-Pack is a reliable and robust solution for your automotive and marine battery connection needs. These battery clamps are designed to provide a secure and solid grip on terminals, studs, or bare battery posts. Featuring a heavy-duty plated spring, these battery clamps exceptional strength and durability. The tough vinyl insulators in red or black provide insulation and protection, minimizing the risk of electrical shock or short circuits. Whether you’re working with automotive or marine batteries, these clamps provide a dependable and secure connection. Model Number: 14-630