Description:

- After folding the bike, the booster is installed at the seat pole, which can help and lift.
- Hidded embedded: The auxiliary wheel is installed inside the folding seat pole, which is convenient and fast, it will not affect the removal of the bike.
- 360° universal smooth rotation, of direction, small and lightweight.
- Not only suitable for folding bikes, but also can be installed on the round tube with inner diameter of 28-32mm, like table, garment racks or shelf.
- Embedded Push wheel, Suitable for all kinds of seat tube(without air pump)

Specification:

- Material: Alloy

- Size: Dia&;3.5CM/1.38 inch, Height&;6.9CM/2.72 inch

Package Includes:

1 Piece Auxiliary Wheel