Abstract: A releasable connection arrangement, suitable for releasably connecting two items, wherein a base portion includes a clamp stud and a head portion includes a stud catch mechanism, and wherein the clamp stud and stud catch mechanism are adapted to be connected to one another when the stud catch mechanism is in an engaged state and to be not connected to one another when the stud catch mechanism is in a disengaged state, the stud catch mechanism providing a substantially frictional connection between the stud catch mechanism and the stud catch when the stud catch mechanism is in the engaged state, the stud catch mechanism including a stud catch plate adapted to be moveable and a stud release lever adapted to move the stud catch plate axially towards and away from the clamp stud in use, so that the stud catch plate can engage and disengage the clamp stud in use.