When customers enter a retail or grocery store, they want their experience to be as frictionless as possible. Many factors contribute to a positive shopping experience, such as a practical, straightforward store layout and great customer service. But if people can't easily maneuver a store's aisles, all other considerations fall away. This is why shopping cart portability is key to keeping your customers happy and increasing sales. With differeent sizes, the cart can be devided into adult shopping cart and kids shopping cart.http://www.tengtrolley.com/sho....pping-cart/kids-shop