Amazon
For Seat Post Suitable for all Seat Post with diameter 25.4 mm By reducing connectors (0.3 – 0.5 – 1 mm, also can be combined) suitable for seat tube diameter up to 29 mm Set of 3, in the package two sleeves are put together and one is loose
For Seat Post Suitable for all Seat Post with diameter 25.4 mm By reducing connectors (0.3 – 0.5 – 1 mm, also can be combined) suitable for seat tube diameter up to 29 mm Set of 3, in the package two sleeves are put together and one is loose