Fluido/marcadores diseño azul acero de ingenieros | Dykem, Spectracolor, Edding
These pens are waterproof and have a low odour ink (no added Toluene/Xylene). They have a robust aluminium barrel and are refillable with Edding T25 & T100 Refills. Dykem Engineers Steel Blue & Red Layout Fluid - 8oz/236ml Bottle, Brush in Cap.