Perfect for accurate line or measurement, this triangle rule is great for making scale drawings and on similar projects. It features scale graduations of 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125. The rule is supplied in a plastic sleeve and is made of aluminium. Dimensions: H32.8 x W2.9 x D2.5cm. Colour: Silver.