Staedtler Lumocolor Omnichrom 108 non-permanent dry marker in pencil-style wood case. Marks almost any surface - plastic, metal, lacquer, leather, rubber, tile, glass, stone, china, wood, leather, etc. Soft brilliant coloured lead is lightfast, odourless and non-corrosive. Water-soluble and can be wiped off most smooth surfaces and washed out of many textiles.
Sharpen with a pencil sharpener.