The pens are filled with black permanent pigment ink that is acid free and does not fade over time

The sketchpad contains 50 sheets that are easy to tear off

200 × 240 mm

the effectiveness is limited because those materials soak up paint and cleaner doesn't pull it back out as easily

15 mm — micro-detailing

stylefile marker classic sketchbook 27x35cm portrait Sior The pens are filled withSketchbook from Stylefile with 120 gsm paper adapted for alcohol based markers. Stylefiles sketchbooks are of an incredibly high quality despite the low price. The book contains 144 pages 82 sheets and measures 27 cm x 35 cm (a bit smaller than A3). Solid hardcover with a discreetly embossed Stylelife logo on the cover.