Alligator clips are made of high quality material. Rating: CAT III 1000V 32A. The alligator clip has a built-in strong spring. Stronger grip and conductivity. The maximum opening can reach 20mm, and there's no deformation after multiple use. Safe and reliable: The alligator clamp of the electrical jumper has a fully insulated PVC sheath, and the alligator clamp has a built-in strong spring. Better grip and conductivity. The wiring is convenient, simple and fast. Widely used: Compatible with 4mm standard banana plug. Widely used in various electrical engineering and voltage tester, battery fast connection. Package Include: 10Pcs Full Insulated Crocodile Clips (5 x Red + 5 x Black) Product Name:Insulation Safety Test Alligator Clips Operating Temperature:-40℃-+120℃ Connector:Compatible 4mm Banana Plug Rated Current:32A (max) Maximum Voltage:1000V Colour:Red-Black Material:Plastic Package Contents: 10 * Alligator Clips Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!