WeldingCity Arc Welding 400Amp Ground Earth Clamp Premium quality brand-new 400 Amp ground/earth clamp for arc welding. Current rating: 400 Amp Strong spring, copper plated jaw and copper braid You get One (1) 400Amp ground earth clamp at this price. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.