Optimal Length and Width: This magnetic ruler measures approximately 39.37 inches in length and 1.18 inches in width, making it perfectly sized for a variety of settings including workshops, lathes, and craft tables. Its flexibility and ideal dimensions ensure extensive applicability without size concerns. Dual Measurement Units: Equipped with both inch and centimeter scales, our magnetic measuring tape offers high precision and clarity. The markings are large and clear, facilitating easy and accurate readings, which is essential for precision work in various professional and hobbyist environments. High-Quality Construction: Made from durable soft magnets and Rubber , this ruler adheres securely to any ferrous metal surface. It is designed to withstand the rigors of the workshop environment. You can also tailor its length by cutting it to fit your specific measurement needs. Versatile Tool: The magnetic ruler is not just for measuring; its versatility makes it an indispensable tool for any workbench, whiteboard, or craft area. Its roll-up design enhances portability and ease of storage, making it a practical addition to your toolkit. Weather Consideration: Please note that in cold conditions, the Rubberand magnets may contract slightly, affecting the length. If this occurs, soaking the ruler in hot water may help restore its original size, ensuring continued accuracy and utility. Color: black Material: Rubber+metal Package Contents: 4 x magnetic flexible ruler