The Brick and Block Leveling Line is a 3D-printed adjustable leveling device designed for masonry construction, suitable for both bricks and blocks, with a maximum extension of 270 mm. It features a slot for string tensioning, a main horizontal beam, an adjustable vertical support with a ribbed grip, a sliding extension rod, and a U-shaped base with alignment holes. Non-3D-printed components include a spring (1.2x12x100 mm), insert nut M4x6x6, insert nut M3x5x5, screw M3x12, screw M4x30, and an M4 nut. Ideal for precise leveling, measurement, and drawing during brick and block laying, this tool serves as a construction string extractor and masonry fixing tool.