Options: Variations: 88K8357 - Bushing Set for Olmsted Ballpoint Pen Hardware 1 - $9.90 10 - $8.45 25 - $7.40 50 - $6.95 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.