Power Outlets & Sockets features: These are two insulation wire test probes, which are made of high-quality and safe materials and have a long service life. This product can be directly used in conjunction with ordinary multimeter, and can conduct tests on cables without worrying about short-circuit problems. Features-Color: Red, black.-Material:Brass, stainless steel, nylon-Size: About15.50X4.50X1.60cm/6.09X1.77X0.63in.-Electrical parameters: CATIII 1000V/Max.10A With standard 4mm socket at the end, you can connect most of test leads and diagnostic devices.-It is good accessory for multimeter for auto repairing, and great for back-probing harness connectors and automotive sensors.-We can easily store and carry it because of its compact design and it has high reliability and long service life.-Easy to use, no need to strip off the cable, not cause damage to the cable.-Made of good materials, good insulation performance, accurate, efficient, and saves time and effort.