Specification: Product Name:?Center Scriber Measuring Ruler Model Number & # 65306;?B33271 Material & # 65306;?Aluminum alloy + stainless steel Color:?Red & Eacute; scale:?Laser engraving Treatment:?Anodizing Dimensions of the case:?13x10cm / 5.12''x3.94 '' Ruler dimensions & # 65306;?30 x 2.5cm / 11.81''x0.98 '' Features: 1. & nbsp; Draw two lines at random; the point of intersection is the center of the circle. & nbsp; 2. & nbsp; cm Line 45 cm in the center. & nbsp; 3. & nbsp; Can draw 45 degrees. & nbsp; 4. & nbsp; The rule steel can be used as a unit.?positioning. & nbsp; 5. & nbsp; Manufact & nbsp;?made of aluminum alloy, machined;?with multi-axis precision equipment, sandblasted?and anodized. & nbsp; 6. & nbsp; It has strength & agrave;?torsion, durability;?and a resistance & agrave;?corrosion. Package Included: 1 x Line Marker Locator 1 x Steel Ruler