The Keedoozle was an automated store, similar to very large vending machine, or Automat. Merchandise was displayed as single units, each within a glass cabinet with a keyhole beneath. Customers entering the store were given a key that they placed in the keyhole below the goods they wished to buy. The quantity desired was determined by the number of times the key was inserted in the slot. This action, recorded the item on punched tape in the key, and automatically moved the item via conveyor belt to the front of the store. Upon reaching the exit gate at the front of the store, an attendant deciphered the customer's tape and produced the bill. After payment, the customer's groceries were delivered, bagged and wrapped. Pilot stores operated in Memphis and Chicago, but the complex and expensive system could not compete with shopping carts.