Aoanydony Folding Bike Auxiliary Roller Easy Assistor Wheel Accessories Black 3.5CM

Description:
After folding the bike, the is installed for at the seat pole, which can help to push 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, free control 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