In order to create a bailment,the bailor and bailee need not agree in writing to the existence of the bailment.

Bailment

A legal relationship where physical possession of personal property is transferred from one party to another, with the understanding that the property will be returned.

Writing

The act or process of producing and recording words in a form that can be read and understood; typically involves the use of a pen, pencil, or keyboard.

Bailee

A person or entity to whom goods are entrusted for a specific purpose by the bailor, who owns the goods.