The Big Red M3 level is made from a lightweight metal rectangular profile with shock-absorbing end caps. It features acrylic glass level blocks with a magnifying lens that increases visibility by 60%. The bright coating allows for better readability in twilight conditions. Equipped with a strong neodymium magnet and two grip holes, the lateral arrangement of the magnets in the profile ensures a consistently flat measuring surface that guarantees precise and unambiguous measurement results. The measurement accuracy in the normal position is 0.3 mm/m, while in the inverted position it is 0.5 mm/m. This level is suitable for horizontal and vertical measurements in both normal and inverted positions.