The mark consists of a circle surrounded by a partial ring with thickness approximately one fourth the diameter of the circle and starting at approximately 130 degrees on a circle whose zero is at the three oclock position and ending at 200 degrees or a little before the nine oclock position and whose interior edge is approximately half the diameter of the circle away from the edge of the circle with three long identical trapezoids pointing at the center of the circle and equally spaced in the gap of the ring and whose ends closest to the circle are positioned approximately one third the diameter of the circle away from the edge of the circle and with a width approximately one fourth the diameter of the circle and with a length approximately twice the diameter of the circle and whose far end is approximately one half the diameter of the circle and with the word FRICTION in all capitals starting approximately one fourth the diameter of the circle away from the outer edge of the ring from the 0 degree or three oclock position and the word WORKS in all capitals and on the line below the word FRICTION with both words right hand justified and vertically centered as a single unit on the horizontal axis extending out from the center of the circle. A horizontal red bar fills the space to the left of the word WORKS left aligned with the F in FRICTION and stopping just before the W in WORKS. The mark and the text are light gray in color.