DescriptionGreat for car amps and battery terminals, also can keep from having stray strands hanging out and makes adapter use a lot easier. It will also save your wire from getting chewed up from a set screw. Made of high-quality copper quality material, not easy to break and damage, can be served long lasting.Features- Color: Silver. - Material: Copper. - Size: About 2.00X1.00X0.50cm/0.79X0.39X0.20inch. - Wear resistance and corrosion resistance, long service life. Good electrical conductivity, stable and reliable wiring.-These wire ferrules can help you organize scattered wires and prevent them from fraying or breaking.-The high hardness prevents it from opening under normal tension or pulling wires.-Have enough thickness to ensure that they will not crack or break during crimping.-Provide you with just the right mechanical strength and electrical contacts.