Staedtler 341 Lumocolor Compact Whiteboard Marker Bullet Assorted Gratnell Tray 144Description Specifications Shipping Handy sized compact whiteboard marker that can be dry wiped from whiteboards and surfaces such as glass and porcelain without leaving a trace Fast drying, low odour Universal tip for variable line widths 1 2mm With clip Airplane safe automatic pressure equalisation prevents pen from leaking on board aircraft DRY SAFE can be left uncapped for days without drying up (Test ISO 554) Locked tip PP barrel and cap