STABILA STA-41072 - 72" R-Beam LevelThis level is exactly what pros have asked for and need. The STABILA R Type 300 level has been especially developed to withstand the toughest building site conditions. It has been designed to be extremely strong, lightweight, twist resistant through a five chamber R profile and easy to use. It has an extra wide measuring surface that prevents the level tipping over during use. This makes the R 300 unlike any other level you have ever used before.