Pivotal connection with the ability to achieve full rotational positioning

An apparatus comprising:

• a joint comprising:
• a base portion defining a socket and a base portion axis;
• an upper portion comprising a spherical element, located in the socket, and
• defining an upper portion axis;
• and
• an actuation portion configured to move between a locked position and an actuation position;
• wherein the upper portion is able to move between a straight position, in which the upper portion axis and the base portion axis are substantially aligned, and a slanted position, in which the upper portion axis is at a slant angle in relation to the base portion axis;
• when in both the slanted position and the actuation position, the upper portion is able to rotate about the base portion axis;
• the spherical element comprises a locking portion;
• the actuation portion at least partially located inside the base portion;
• the actuation portion comprises a button, a button spring, a pin, a pin spring;
• the button defines a pin receiving space;
• the pin comprises a pin projection;
• the pin extends through the pin receiving space;
• the button is configured to move between the locked position, in which the pin is prevented from moving in an actuation direction, and the actuation position, in which the pin is capable of at least some movement in the actuation direction;
• the button spring biases the button to the locked position;
• and the pin spring biases the pin toward the spherical element and into abutment with the locking portion.