The mark consists of a capital letter "H" which is tilted to the right at an approximately 30 degree angle, the top and bottom openings of the "H" being penetrated by dark gray lines of a thickness approximately equal to the thickness of the lines in the "H". The "H" is blue, except for at the upper right and lower left, which are "behind" the dark gray lines, and which are light gray. Each dark gray line terminates at one end in a light gray semicircle. Together the semicircles, the dark gray line ends, and the gray portions of the "H" suggest a circle. The blue ends of the "H" extend outside the circle and are diagonal at the same angle as the crossbar of the "H" and the dark gray lines. All of the aforementioned appears on a white background. The white appearing in the mark represents background and/or transparent areas and is not part of the mark.