【Easy to Use】 The marking ruler is precise, versatile and easy to use. Find the hole corresponding to the scale, insert the pen into the hole and draw the desired line. 【Function】 Follows the edge of your workpiece to mark perfectly placed horizontal or vertical lines, micro-fine marking holes and slots place your mark exactly on target, makes the woodworking ruler a perfect tool for you. 【Aluminum alloy material】 It is wear-resistant, rust-proof and durable. 【Accurate】 Accurate marker rulers can help you draw perfect horizontal lines while sliding rulers along the working edge. 【Compact Size】 The size of the ruler is 68cmx40cmx7cm. It is easy to carry and use.