This nylon Insulated Closed End Connectors is compatible with solid and stranded wire combination. Suitable for various application like car audio and security devices. Preventing wire shorts by insulating wire ends. Material: Nylon Surface Treatment: Tin Plating Heat resistance: -40 - 105℃ Easy access insulation for easy cable insertion Package includes: 200 x AWG 12-10 16-14 22-16 Closed End Crimp Cap Terminal Connectors