This multipurpose book cover guide makes a must-have addition to any bookbinding enthusiast's tool kit. Featuring an innovative 5-in-1 design and clear-to-read scale, this book cover guide can handle various measuring and spacing needs. Made of metal, it is sturdy and durable for lasting use. Features -Color:As Shown -Material:Metal - Size: 19.70X10.30X0.10cm/7.74X4.05X0.04in -Accurate measurement: Use the bookbinding cover tool to accurately measure the size of your desired book covers. -Strong durability: Made of metal material, the book cover making guide is not easy to deform, and can be used for a longer time. -Convenient to carry: The bookbinding guide ruler is flat and lightweight, making it easy to carry with you anytime, anywhere. -Multi-functional design: The positioning ruler can be used not only for measurement but also help you mark the radian or proper gaps. -Stylish appearance: The book cover guide has a sleek and simple appearance, suitable for various occasions.Package list: 1 x Book Cover Guide