We have strong belief that only if we have a deep understanding of people’s needs and desires, we can make our products become different, which may make your life different. We will always provide friendly customer service. Specification: Material: Copper Nickel Plated Connection: 4mm Female Socket Parameter: CAT II 1000V, 10A Color: Red & Black Multi-meter Test Probes 1000V 10A Rating: CAT IV 600V, CAT III 1000V 10A. Two kinds of wire piercing probes are made of stainless steel which are sturdy, strong, wear resistant and have a long service life. 4mm female socket on the bottom is for connection to the multimeter test leads At Goupchn, we strive to provide high quality tools and accessories that inspire our consumers to live a more convenient and enriched lifestyle. Our unlimited passion for innovation and solutions drives us to move forward. Hope you can be satisfied with our products. Goupchn - Make something different. So it has good electrical conductivity when connected to the test leads. Double soft silicone wire,can withstand-60℃ to 200℃ temperature ,not afraid of coldness and heat and provide security for test. Suit for test IC... It can fully protect your safety when testing. Nickel Plated Copper Probes Goupchn Multimeter Probes With 4mm Female Socket Nigeria 4mm Socket Probes