Sea Harvester COPPER CRIMPS 1.2MM DOUBLE QTY 50 are small connectors used in fishing to secure the fishing line to the hook, swivel, or lure. These crimps are made of copper, which is a good conductor of electricity and heat, and has high ductility and corrosion resistance. The double crimp design ensures a strong and secure connection, reducing the risk of the line slipping or breaking during a catch. This package contains 50 copper crimps, each with a diameter of 1.2mm, suitable for a variety of fishing applications.