The stabila 90-2 heavy-duty level is made from strong but lightweight metal alloys & features soft ribbed reinforcements that make the level easier to handle & improve strength. It has two vertical vials which ensures accurate measuring, the level also has a single horizontal vial. this horizontal vial has a viewing angle of up to 300â° & can also be used for overhead measurements by turning the level upside down. the level is also fitted with impact resistant end caps that provide good shock-absorption in the event that the level is dropped.