You can protect your free customers against stealing with the boxing gloves. If you have one or more boxing gloves, your customers are protected against other players’ steal attempts. However, each protected steal attempt consumes one glove. This means that once you are out of the gloves, your free customers became available for stealing.
The boxing gloves are available only from the spinner. If you have collected three gloves from the spinner, the boxing glove sector is replaced with 5 000 customers sector. Once you lose glove(s), the sector becomes available in the spinner. Remember to check in the game often to fill your gloves and avoid nasty surprises!