Optimal Length and Width: This magnetic ruler measures approximately 39.37 inches in length and 1.18 inches in width, making it well-suited for various applications including workshops, lathes, and craft tables. Its flexible design and practical dimensions support broad usability. Dual Measurement Units: Featuring both inch and centimeter scales, this magnetic measuring tape provides clear and precise markings for accurate readings, ideal for detailed work in professional and hobbyist settings. High-Quality Construction: Constructed from soft magnetic material and rubber, this ruler adheres securely to ferrous metal surfaces. It is built to endure workshop conditions and can be cut to fit specific requirements. Versatile Tool: This magnetic ruler serves multiple functions beyond measurement, offering utility on workbenches, whiteboards, and in crafting areas. Its roll-up design allows for easy storage and portability. Weather Consideration: In cold temperatures, the rubber and magnetic components may contract slightly, which could affect length. If needed, soaking the ruler in warm water may help return it to its original size for continued accuracy. Color: Black Material: Rubber + Metal Package Contents: 1 x Magnetic Flexible Ruler Note: Lighting conditions and screen displays may cause slight variations between the image and actual product color. Measurement tolerance is +/- 1-3 cm.