Abstract: A holding device in which two side parts are provided which lie against one another with one edge region of each side part being encircled by an elastic ring or rubber band that is detachably fixed in the noted edge region. Furthermore, each of the side parts has at least one recess whose contour corresponds substantially to the contour of an object to be held, and heightwise corresponds in the vertical direction to the dimensions of the object, or is larger than the latter, while at least sections of the at least one recess are dimensionally smaller in a horizontal or widthwise direction than the corresponding dimension of the object to be held.