The DM7 Grading ruler is the perfect tool for adjusting patterns in your fashion workroom. Made from durable and flexible materials, this versatile ruler can be used for both patternmaking and grading. With metric measurements and clear, transparent plastic, it's easy to see and work with. The black lines and centimeter increments make precise adjustments simple. Whether you need to increase or decrease a pattern, the DM7 Grading ruler is up to the task. It's a must-have for any fashion designer or seamstress.