Add a Wire Ferrule Refill Kit to your DIY kit for better electrical construction and home improvement. Our Wire Ferrule Refill Kit lets you save valuable time while doing electrical work. Guide the ends of stranded wire into an appropriately sized wire connector, making a safe, secure fit in seconds. The kit comes with a secure plastic container and 225 electrical wire connectors in every size that's right for the job. This pack includes wire crimps that are compatible with most ferrule wire crimpers. Our wire connectors are made of highly conductive copper which makes an excellent electrical terminal. Each connector provides strain relief for individual copper strands when attached. It also prevents strands of wire from fraying at the terminal point. They're sleeved with flame-retardant plastic for added protection and safety. You get dozens of terminals of all sizes to suit your needs. Our wire connectors kit contains 4 varieties of wire ferrules ranging from .5 sq. mm. to 1.5 sq. mm. in size. Each of these has carefully color-coded sheathes to keep them tidy. Our electrical connectors are UL-certified and have a limited 1-year warranty for manufacturing defects.