Available 55 brilliant colours, including fluorescent shades Suitable for use with rulers and stencils Metal-enclosed tip provides durability Line width
Rotring Isograph Pens are instruments created for engineers and architects, manufactured and designed with precision for optimum performance. Isograph pens
These slim, triangular-barrel pens are ergonomically designed for comfortable, effortless & fatigue-free drawing and writing. Super fine 0.3 mm porous points