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 Product Notes: Please allow a little manual errors.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 confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.