On construction sites, a spirit level is subjected to heavy use and it can easily fall. Therefore, it is even more important that it continues to measure as accurately as on the first day, even under daily stress. The two vertical vials allow for reading in any position. Additionally, two grip openings ensure a secure hold. The stable reinforced aluminum rectangular profile and STABILA's embedded technology with a permanently cast vial make this tool the perfect partner for tough job site applications. STABILA spirit levels: Precision that lasts a lifetime.