50 piece pack of horseshoe shaped base metal wire guardians - use these guards to protect your stringing materials from rubbing up against metal components. Often used as an alternative to french wire. Inner diametre: approximately 0.8mm, height: 5mm, width: 4mm. To use, simply thread your tigertail through a regular crimp, then through a wire protector. Thread on your clasp, positioning it in the centre of the wire protector, then thread your tigertail back through the original crimp. Available in bright silver, bright gold, black, bronze or copper.