Leveling Ruler for Equal Heights: Specially designed as a Ceiling and Floor Tile Height Ruler, this tool is perfect for achieving levelness during tile laying and suspended ceiling operations, enhancing the professionalism and perfection of your work. Magnetic Base for Ceiling Leveling: Equipped with a magnetic base, this leveling ruler can easily adhere to the ceiling, aiding in efficient and precise roof leveling operations for execution. Double-sided Scale with Horizontal Bubble: The Four sided scale allows for versatile reading while the horizontal bubble on top ensures the accurate leveling of lines, making your renovation work more precise and easy. Ideal for Construction Workers: Whether you are a or a renovation worker, this leveling tool is designed to offer convenience and efficiency, making it an essential tool in your toolbox. Colour: Material:plastic Package Contents: 4 x Equal height marking ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.