Laserliner supercross laser 3 cross line lasers laserliner 081 140a p this supercross laser 3 cross line lasers from laserliner has been desigend with three very bright automatic laser lines with front laser cross and 90 deg side laser line the 90 deg position of the vertical laser lines can be used to produce a right angle on the floor to project a plumb line on slanted walls p p there are plenty of features available including automatic level for automatic alignment by virtue of a