In one simple action the Trolley Bags system spreads out and rests on the supermarket carts, giving you a series of open and upright four bags into which you can pack and sort all your goods with both hands.
Each durable bag holds a lot of stuff, and are designed to make shopping trip easier and more convenient.
Allowing you to fill them with your groceries as you walk around the supermarket etc.
Plus the USA cart are made different than UK I am assuming that. Because my cart does not have a hook on it to hook the bag on the outside of the cart.
Just some changes could be made in the design in my opinion.
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