Options: Variations: 88K8356 - Bushing Set for Atracia Rollerball & Fountain Pen Hardware 1 - $13.80 10 - $11.70 25 - $10.35 50 - $9.65 Bushing Set for Atracia Rollerball & Fountain Pen Hardware These soft-iron bushings are specifically sized to match the brass sleeves in our Atracia rollerball and fountain pen hardware kits.