Stabila 37436 Heavy Duty 36-Inch Type 196 Construction Level w/ 5-Pocket Case Durable to hold up to intense working conditions Clear, bright vials are easy to read so you can be sure of your results Box-frame level's 1 horizontal and 2 vertical vials let you find level and plumb quickly Vial design allows easy readability from multiple angles 2 rubber end caps protect against drop or impact damage