Usage Tips: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 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 professional and hobbyist environments. Construction: Made from soft magnets and Rubber , this ruler adheres securely to any ferrous metal . 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 size, ensuring continued accuracy and utility. Color: black Material: Rubber+metal Package Contents: 1 x magnetic flexible 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.