Item Details: * Plastic Ultra-thin Mini Patchwork Sewing Ruler * Ultra-thin design, easy to store * Used to measure seam allowance and style * One slot for 5mm spacing, convenient for drawing seams of different widths which can be straight or curved* Can be used as straight compasses* Material: plastic* Color: white* Scale: 21cm* Dimension: 230*40*0.64mm (approx.) Package content: 1PC * ruler Note: 1. Transition: 1cm=10mm=0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.