Derwent Scale Divider
Scale up or down drawings with ease using this divider. A Scale Divider is an ingenious drawing tool invaluable to artists. It makes it easy to transfer measurements from life, photographs, and sketches, ensuring you achieve accurate proportions every time. Reduce or enlarge images in ratios from 4:1 to 1:4. Folds neatly away. Slips easily into a backpack.