Features： 1、WEAR RESISTANT ABS: Made of good quality ABS material, which feels smooth and solid, wear resistant and durable, very practical 2、GOOD HELP: Easily scribed for a fit, 45° cut and guide lines are available to make window and doors cut or trimmed ly 3、WITH LEVEL: Can be used for cutting or marking, and the spirit level on the body can also be used to measure the leveling effect of doors and window 4、DURABLE RULER: Trim marks offset ruler is small and light, has good wear resistance and long lifespan, and easy to use 5、 PERFORMANCE: Made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification： Item Type: Trim Marks Offset Ruler Material: ABS Measuring Ruler Size: Approx. 51 x 51 x 13mm / 2.01 x 2.01 x 0.51in Center Hole Diameter: Approx. 20mm / 0.79in Package List： 2 x Trim Marks Offset Ruler