Reliability Direct, Inc. provides a cost effective, high quality, compact solution for verification of vertical and parallel alignment of two rolls. A green laser Line (10X brighter than a red laser) A laser line is projected from the RollCheck® transmitter to the reflector mounted on the roll to be checked or aligned. The laser line projected to the reference line on the reflector indicates immediately if the roll is aligned vertically to the stationary roll. The laser line is then automatically reflected back to the transmitter’s reference line indicating if the rolls are parallel to one another. This system is very easy to use; a single person can perform the alignment task in minutes with no training!