Features: Torpedo levels are designed to fit in tight spaces, making it ideal for plumbing applications. Use them to find level and plumb, as well as 45° angles. Frame Material / Aluminum Length / 9 in Magnetic/Nonmagnetic / Magnetic Top Read / Yes Total Number of Vials / 3 Number of Plumb Vials / 1 Number of Level Vials / 1 Number of 30 Degree Vials / 0 Number of 45 Degree Vials / 1 Lighted Vials / No Number of V-Grooves / 0 Accuracy / 0.001 Vial Type / Barrel Vial Material / Acrylic Number of Magnets / 3 Magnet Type / Strip Color / Blue