Metric Direct Reading Grade Rod Optical GRL900 20HVK automatically emitting bright green beam 76370 automatically emitting bright green beam that is 400% brighter The Stabila R300 R Beam Level is an innovative measuring tool designed for a wide range of construction applications that require durability and accuracy such as carpentry Choose from two available length variations: three meter that expands from five feet and five inches up to nine feet and seven inches or five meter that is adjustable from eight feet and five inches through 15 feet and 11 matte textured tape face that provides easy visibility even under bright sunlight while protecting the markings against wear and fading