[VERSATILE ADJUSTMENT]: You can change the shape according to your needs, just need to change the tightness of the pen holder and the nut to achieve different shapes to complete. It can be locked and fixed after each adjustment for precision. [HIGH QUALITY]: It is made of high-quality aluminum alloy with anodic oxidation treatment on the surface, which can help extend the product's service life. [EASY TO USE]: The scale of the woodworking linear arc scribe tool is clearly visible. You can draw parallel lines and arcs according to your ideas, which is convenient to operate. []: The product size is small, the weight is also light, you can put it directly in your pocket. Unique shirt pants clip makes it easy to carry and store. [WIDE APPLICATION]: It is a multifunctional tool with over 15 marking applications, including tile and paving, stud walls, gables and paneling, infill panels, shop fitting and built-in furniture. Size: 1.38 x 1.2 x 6 inches color: black Material: Plastic Package Contents: 1 x Drawing Ruler Contour 1 x pen Only the above package content, other products are not included. Note: Light shooting 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.