Chalk marker, assorted colours, black, white, yellow, pink, pack of 16. Supplied = assembled. Colour = assorted colours. Line thickness = 0, 5 - 3 mm. Length = 173 mm. Product type = board/flip-chart markers. For writing on glass boards and whiteboards. Also writes on smooth surfaces such as glass, tiles, mirrors, metal, plastic. Line thickness varies from 0.5 - 3 mm. The chalk markers with a round tip are filled with a liquid water-based chalk that provides good coverage and does not smell. They write on smooth surfaces such as glass, tiles, mirrors, metal, plastic, (bistro) boards etc. Window panes and display windows are also child's play to draw and write on using the chalk marker. The chalk pigments can be wet wiped from smooth surfaces, and be dry wiped from many smooth, non-porous surfaces as well. Pigment and plastic are compliant with EN 71-3, all components are free of heavy metals, contain no toluene or xylene. Caps feature vents in compliance with ISO 11540. Pack of 16 markers, assorted colours, 4 markers each in black, white, fluorescent yellow and fluorescent pink.