Feature: 1. Adjustable Positioning: Experience effortless line marking with the marking square, as you can easily adjust the positioning blocks to quickly locate and draw accurate lines, making the operation simple and efficient. 2. Easy to Use: Measurement tasks become stress free with this scribing ruler, allowing you to effortlessly measure lengths and depths. By adjusting the positioning blocks, you can accurately map out distances and depths without any hassle. 3. Multi Use Method: Enjoy the versatility of the ruler, as it can be used independently or in combination with the block. Whether you need a basic straight edge or a 3D measurement tool, this square can handle it all with ease. 4. Clear Scales: Featuring clear and robust metric scales on both sides, the marking ruler provides easy readability and long lasting use. The accurate markings cater to diverse needs, ensuring clarity and durability in every use. 5. Adjustable Blocks: With adjustable positioning blocks that can be securely set in place, the L line marking square enables steady and non slip positioning. By using the rotating nut to adjust the straight edge's positioning, you can achieve accurate line marking effortlessly. Specification: Item Type: Adjustable Block Woodworking Ruler Material: Aluminum Alloy . Package List: 1 x Ruler