WeldingCity Arc Welding 500Amp Ground Earth Clamp Premium quality brand-new 500 Amp ground/earth clamp for arc welding. Current rating: 500 Amp Strong spring, copper plated jaw and copper braid You get One (1) 500Amp ground earth clamp at this price. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.