This package comes with 2 pairs of crimp terminals and connectors. ring terminal, superior electrical contact. Gold plated to protect against corrosion and to ensure increased power flow and the highest without distortion. 4 gauge power wire/ ground wire fork terminals. Alternative for banana plugs. Safer than connecting bare wires. Feature - ColorAssorted Color - Material: Copper - Size: 5/16"(about 8.5mm) ring diameter. Warm tip: The picture is for reference, and please allow 0.1-0.2 inch difference due to manual measurement.(1 inch=2.54cm) - This package comes with 2 pairs of crimp terminals and connectors. 2 red boots and 2 black boots of crimpable ring terminals. - Thick barrel ensures strong crimp to prevent your wire slipping out of the connector. - Premium copper heat tested, gold plated to protect against corrosion and to ensure increased power flow and the highest without distortion. - 4 gauge power wire/ ground wire fork terminals. Thick barrel ensures strong crimp every time, your wire will of these connectors - for garages, auto electricians, mechanics, workshops, etc. Suitable for cars, , motorhomes, etc. Package list: 2 x Red Boot 2 x Black Boot