Keson Box-Beam 3 Focus-20 Vials 32 Magnetic

For the price Keson Box Beam levels are the best levels for construction available in North America. The new Keson Box Beam series provides professional grade levels for construction and contain the SOLA FOCUS vial. The Focus vial offers greater contrast by using green colored bands instead of common rings and 20% magnification making it easier to see the bubble and determine its position for faster and more precise measurements.