The TKBA 31 alignment tool has two components: a laser-emitting unit and a receiver unit. Each is attached quickly and easily - using a powerful magnet - to the inside or outside face of a belt pulley or chain sprocket. The TKBA 31 can be applied to most machines that use V belts, banded belts and ribbed belts - as well as those with chain sprockets. The TKBA 31 uses a green laser diode and can be used for long distances - including outdoors in sunny conditions. The alignment tool is delivered in a case with additional items like belt tension checkers and extra targets to support a professional alignment job.