Add Wish List Quick view Add to Cart The item has been added OLD SCHOOL Steel Internal Thread Gem Ball -1.2-2.5-Crystal ISB17-1.2-2.5-CR Steel Internal Gem Ball Gauge: 1.2mm or 1.6mm / 1mm Thread Original OLD SCHOOL British Steel Internal Thread with 1mm Thread. We have been making this style for over 20 years. Original OLD SCHOOL British Steel Internal Thread with 1mm Thread. We... MSRP: £1.92 (Inc. VAT) MSRP: £1.60 (Ex. VAT) Add to Cart The item has been added