rOtring Isograph Technical Drawing Pen, 0.13 mm

hi this is Tim from pocket box comm today I'm going to review the road ring ISIL graph technical pens these are actually some of the more durable technical pens out there in the market today let's take a closer look these are the two roaring ISIL graph that I have one is a 0.5 the other is a 0.7 they are actually available inline wheels of 0.1 all the way up to 1.0 now the body is quite lightweight it's made of plastic mostly except for the metal clip here and tip that is inside this cap is the twist time cap and if you want to you can post it at back rotring also mix another pan that is called the rapido grab and it's quite similar to the iso graph we have some minor differences both are actually refillable so let's take a look at the difference both feature twist-up cap and both have metal tips the main difference come from the ink cartridge so this is the ink cartridge and this is th