*** You cannot use QR shaft alone. You need to replace black low-profile top collar body designed for QR shaft with your original collar plate.

What's included:

- QR Shaft
- 3mm hex key for assembly
- Dust cover for QR lever
- Black Low-profile top collar body designed for QR Shaft
- White Grommet Bobbin designed QR Shaft

This kit is a set of parts that upgrades the regular Samducksa 303, 307, and 309 series into QR lever series.