Stabila Torpedo Level Set, Profile Type: Rectangular, Vial Type: Bubble, Number of Vials: 3, Vial Material: Plastic, Vial Positions: Horizontal, Vertical, Accuracy: +/- 1/32 in, Number of Measuring Surfaces: 2, Magnetic/Nonmagnetic: Non-Magnetic, Aluminum, Yellow, Includes: 10, 24, 48 in Levels