Add a little precision to your art and your work with this helix metre ruler this fantastic ruler enables you to measure anything up to a metre making it perfect for a huge variety of arts crafts and design projects measure fabrics papers and other materials to your hearts content with a metre ruler you can scale up all of your work and enjoy easy measurements in millimetre and centimetre values it also allows you to draw straight lines onto any canvas size 06 x 25 x 100 cm metre ru