STAEDTLER box containing 4 assorted colours- Ideal for Lumocolor year planner 641 YP and Lumocolor memo board 641 MB- Can be dry-wiped from whiteboards and surfaces like glass and porcelain without leaving a trace- Fast-drying, low odour- Locked tip- Stand-up STAEDTLER box- DRY SAFE – can be left uncapped for days without drying up (Standard atmosphere according to ISO 554)- PP barrel and cap guarantee long service life- Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft- With universal tip for variable line widths of approx. 1 - 2 mm