Features Accuracy Measurement: 8 inch woodworking ruler with adjustable sliding mechanism for easy surface measurement, lock tightly with two thumb screws to prevent loosening during use. Stable Control: Pocket sized woodworking ruler tool with groove design at the end to securely hold pencil tips, helping to control parallel lines effectively and prevent slips for more accurate data. Portable Design: Lightweight and portable pocket woodworking ruler gauge can be carried in woodworking aprons or hung on tool wall, ideal for woodworking, DIY, crafts, etc. Large Slider Design: 8 inch metal ruler with wide slider design for accurate measurements in various drawing tasks for mechanics, woodworkers, mathematicians, and engineers. Adjustable slider locks securely for easy surface measurement. Versatile Usage: Multi functional woodworking ruler with both metric and inch measurements, suitable for woodworking, DIY, crafts, etc. A must have measuring tool for every carpenter. Specification: Item Type: Woodworking Marking Gauge Material: Aluminum Alloy Size: Approx. 8 inch(0-210mm) Function: Adjustable sliding mechanism locks in tight, allowing you to easily measure on surfaces. Two thumb screws secure the slide block, preventing it from loosening during use. packing list: 1 x Woodworking Marking Gauge Package List 1 x Woodworking Marking Gauge