specifications
wheel:8x1.75
material: PU wheel
rim: plastic
N.W.:0.335kgs
advantage
1.light weight
2.high load bear
3.Environmerntal and durble
4.Avoid punctured-tires problem caqused by the conventional air wheel
5.Greter carrying capacity
6.Greater wearability
7.Extre tough and long lasting
8.Sound deadening