Thread-bound book opens flat

Modern stylized design in anodized aluminum

and pH-neutral

but they work really well with normal paint brushes and airbrush as well

This model measures approx

ballograf ballpoint pen desk set yellow Skolestart Thread-bound book opens flatA true Swedish classic. The Ballograf Ballpoint Desk Set was introduced in 1961 and was a compulsory feature in most Swedish bank and post offices from the 1960s onwards. A wonderful Swedish design classic who moved from bank and post office in Sweden to designer stores around the world. The pen comes filled with blue archive proof ink. The pen is refillable and has lifetime warranty. Made in Sweden.