Options: Variations: 88K8357 - Bushing Set for Olmsted Ballpoint Pen Hardware 1 - $13.70 10 - $11.70 25 - $10.25 50 - $9.60 Bushing Set for Olmsted Ballpoint Pen Hardware These soft-iron bushings are specifically sized to match the brass sleeves in our Olmsted ballpoint pen hardware kits.