1.aluminum shopping trolley 2.patent product:shopping trolley with seat 3.patent No.:200820127902.1 4 ... -2F(02)Style:folding/foldableType:shopping cart,shopping trolley,luggage truckAbout sizeProduct size:52*48*95cmBag size ... :1pc/1pp bag,8pcs/master carton,no single box and no manual, wheels are in bulk,customer ... :push the button of the centre of wheel with thumb, at the same time pull the wheel ...