SomeoneÂ’s really sat down & thought about what we need a shopping trolley to do, & weÂ’re delighted to say this new design is the result. When youÂ’re on your way to the shops & the bag is empty (or if carrying much lighter loads), manoeuvrability is at a premium. This is when the trolley is best in two-wheel mode, pulled along like a conventional shopper. But when you start to load it up with a weekÂ’s worth of provisions, two wheels are not enough Â- even with the additional stabilising bar, any two-wheeler becomes unstable & can topple. So with a simple press of your foot on the rear axle, you unfold the frame to bring the other two wheels into action, significantly extending the wheel base to create a very stable four-wheel push/pull carrier that stands up on its own even when fully loaded. Made from durable polyester, the main bag has a generous 48 litre capacity with an additional zippered insulated compartment on the front for frozen or hot foods. Facing you on the rear is a smaller zippered pocket, ideal for purse, keys, mobile phone etc. The bag has a drawstring closure at the top & a large flap to keep contents dry from rain. Bag detaches in seconds from the tubular metal frame for easier unpacking at home.