For writing and technical drawing
Rigid lead sleeve (not springy)
Colour code for line width
Adjustable window for hardness
Supplied with 3 Super-Polymer fineline HB leads and eraser
Available individually in 4 line widths or in a wallet of 4 : 0.3 / 0.35 mm,
0.5 mm, 0.7 mm, 0.9 / 1.0 mm