Big Red M3 Level. Material: Lightweight aluminum rectangular profile with shock-absorbing end caps. Acrylic glass vial blocks with magnifying lens (+60%). Luminous coating for better readability in twilight. Equipped with a strong neodymium magnet and two holes for gripping. The lateral arrangement of the magnets in the profile creates a permanently flat measuring surface, ensuring precise and unambiguous measurement results. Measurement accuracy in normal position: 0.3 mm/m; measurement accuracy in inverted position: 0.5 mm/m. Use: for horizontal and vertical measurements in normal and inverted positions.