5 x 8 in. It’s fascinating how these convenient stores around the corner, called mini-markets too, have evolved here in Mexico, they not only sell goods. Over the years the services they provide are increasing tremendously. For those who have not access to internet it is very convenient go to these stores to add calling minutes to your cell phone, pay utilities, buy tickets for passenger busses or events, even some banking services, yes, banking. They are fast and reliable, no more lines! No wonder they are multiplying like rabbits. Demand and supply.