• Rotring Drawing Aids are professional tools made of high quality durable materials. They are tools designed for artists, designers, architects, engineers and people who want the best precision. Set squares, rulers, semicircular, parabola, and burmester curves created for ease and optimum performance.
• Good Quality
• Can be used alone or in combination with conventional pastels or other media in both dry and humid weather
• Good material for customer
• easy to use with a good quality
