Fielect Heavy-Duty Insulated Alligator Clips Clips Alligator Clamps these heavy-duty clips are easy to open and the spring-loaded jaws grip tightly, strong jaws never fall off once they're clamped down. Product Features Strong spring Thicken spring, clamp it firmly, and it will not loosen after repeated use. Integrated molding The rivets are thicker and one-piece molded to be stronger and have a long service life. Smooth jaw Finely polished, round and smooth without burrs, will not damage the object and not easy to fall off. Wide Application Alligator clips crimp mainly used in electric circuit, automotive; will a best smart choice for electric engineer and electric DIY lovers.