ITEM NAME:Steel Ruler Positioning Block Woodworking Scribe Drawing Mark Line Gauge Product Description Description: Steel Ruler Positioning Block Woodworking Scribe Drawing Mark Line Gauge Carpenter DIY Measuring Tool Feature: Good quality, made of high quality materials, good quality, not easy to rust. Easy to install and use, suitable for all kinds of steel ruler. Specifications: Material: aluminum alloy Size: 54 * 30mm/2.12*1.18'' Suitable for 0-3.5mm thickness and 0-30mm width Note: Steel Ruler is NOT included. 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Steel Ruler Locking Block.Easy to install and use, suitable for all kinds of steel ruler. Note: Steel Ruler is NOT included. Included: 1 X Steel Ruler Locking Block. Material: aluminum alloy. If item is defective after 3 months, you can still send it back to us.