Staedtler 576 01 F Trace circles Mars (Transparent) (Import Germany) (Office Supplies)
The article of description. I chose this one when there was orange and cheaper, because it is more transparent than those orange. It ranged from 0.5 mm 0.5 mm 1 mm to 10 mm, then 1 mm in 1 mm to 36 mm. The inside of the circles is beveled, which allo
