Handle material: PVC Clamp material: nickel-plated iron Function: electrical test Clamp length (without socket): 35 mm Package contents: 20 crocodile clips. Alligator clips: Alligator clips are often used in school physics laboratories to assemble circuits quickly and inexpensively. They are useful for connecting components to wires. Superior performance: They can be used for electrical testing, repairing broken clips on test equipment and chargers, making your own low voltage jumpers. They are also ideal for use in stereo applications or with batteries, power terminals or for test leads, power supply, test, battery, multimeter test leads. < p>PREMIUM MATERIAL: The metal tweezers are made of nickel-plated iron with good electrical conductivity. The sleeve is made of high quality PVC, high quality flame retardant, environmentally friendly and non-toxic. Easy to use: These alligator clips are easy to install and secure with a PVC insulating sleeve covered. A total of 20 alligator clips to meet your basic needs for daily use. Great replacement part for repairing broken wires on test equipment and chargers or for making your own low voltage jumpers. show: These alligator clips are easy to install and are supplied with a covered PVC insulating sleeve. They can be used for electrical testing, repairing damaged clips on test equipment and chargers, creating your own low voltage jumper cables. They are also ideal for use in stereo applications or with batteries, power terminals or for test leads, power supply, test, battery, multimeter test leads. < p>Good quality product