Features: Top-read level has 2 grooves and a magnetic strip to help you keep the level steady, for more-accurate readings. Surround-view vials can be read from any angle. Frame Material / Plastic 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 / 1 Magnet Type / Strip Color / Blue