Neck braces are used to provide stability of the cervical spine after neck surgery, a trauma to the neck, or as an alternative to surgery. They are probably the type of spinal brace you most commonly see people wearing. There are several types available, including:
The cubic foot is an imperial and US customary (non-metric) unit of volume, used in the United States, and partially in Canada, and the United Kingdom. It is defined as the volume of a cube with sides of one foot (0.3048 m) in length.
Foot is an imperial and US customary length unit and defined as 0.3048 meters (30.48 centimeters or 12 inches). There are 5280 feet in a mile (US and UK), 6076 feet in a US nautical mile and 6080 feet in a UK nautical mile. The abbreviation is ft.