Portable bags can be stretched expansion， let a person can carry the items needed to buy more easily， without the needfor shopping bag size and trouble， in case of heavy tractor，bottom with a tug， more convenient， more convenient， more real， and watching the new fashionable.

The characteristics of the commodity:

1， can be used as a storage bag， bag use.

2， worry and effort， to do more shopping， push cart.

3， folding， large capacity.

4， folding push wheel design， "the amphibious".