These are two insulation wire test probes, which are made of and safe materials and have a . 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: About 15.50X4.50X1.60cm/：6.09X1.77X0.63in. -Electrical parameters: CATIII 1000V/ 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 . - 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 . Package list: 2 x Insulation Wire Piercing Probe Clips