Double-sided scale with horizontal bubble: The four-sided scale offers versatile readings, while the horizontal bubble on top provides precise leveling, making renovations more accurate and easier. Level ruler for equal heights: Specifically designed as a ruler for ceiling and floor tiles; this tool for leveling during tile installation and attic/suspended ceiling operations improves professionalism and precision. Magnetic base for ceiling leveling: Equipped with a magnetic base, this level ruler can be easily attached to the ceiling, supporting efficient and precise ceiling leveling. Use scenarios: - Ceiling tile installation: Use the ruler to verify level across the ceiling grid; the magnetic base helps hold it in place for quick checks. - Floor tile alignment: Check uniform height across floor areas during tile laying to reduce rework and ensure a flat finish. - Attic or suspended ceiling work: Attach to the ceiling to establish and maintain level references during installation and adjustments.