colouring power
this product is invaluable
He has tested numerous types of drawing instruction from centuries old classical techniques to contemporary practices and designed an approach that combines tried and true techniques with innovative methods of his own
They have high colouring power
Alumicolor 12in Hollow Silver Aluminum Engineer Scale Lyra colouring powerMade from the highest quality aluminum for ultra smooth edges and a solid feel without flexibility. The anodized silver finish gives a satin like feel, while the photo anodized calibrations are resistant to cleaners and will not rub off. Architect Scale calibrations are inches to 16ths, (1 8", 1 4"), (1 2", 1"), (3 4", 3 8"), (3", 1 1 2") and (3 32", 3 16"). Engineer Scale calibrations are 10, 20, 30, 40, 50 and 60 parts per inch. The hollow scales