The kind of device. The sub classification of the component. For example, the type of packer. The measured depth at the top of the component. The overall length of the component. TopDepth plus Length equals BaseDepth. The true vertical depth at the top. The true vertical depth at the base. Characteristics primarily intended for a tubular segment. The number of joints in this segment. The weight of the joints per unit length. The length of each joint. This describes the thickness of a tubular wall. The effective diameter after compensating for a lack of straightness. The effective length of the component. The effective volume of the component. xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx Characteristics primarily intended for a device. The weight of the device The maximum temperature at which the device is designed to operate. xxxxxxxxxxxxxxxxxx of a subsurface safety valve. xxxxxxxxxxxxxxxxxx of a subsurface safety valve. The position of the sleeve with regards to being open or closed. The diameter of a hole in a tubular. The setting pressure of a valve. Properties which apply to the overall device or to both ends. Properties which only apply to the top end (smaller measured depth) of the device. Properties which only apply to the bottom end (larger measured depth) of the device. The grade of the material. The maximum pressure at which this device is designed to operate. The manufacturer of the component. The model designation of the component. An event related to the component. Comments and Remarks about the copmponent. The unique identifier of the element.