High quality copper.
PRODUCT CONTENTS
4mm ring blue (50), 4mm ring red (50), 5mm ring yellow (50), 5mm ring blue (50), 5mm ring red (50), 6.3mm female bullet terminal red (50), 6.3mm male bullet terminal red (50), 6.3mm insulated male push-on red (50), red butt (50) and blue butt (50).
