Staedtler Lumocolor Glasochrom pencils are waterproof wood-cased pencil ideal for opaque marking on almost all surfaces, even on dark or transparent ones, e.g. paper, plastic, metal, glass, wood, leather and stone. No bleeding through paper. Non-corrosive colour pigments. Wood from certified, sustainably managed forests.
Staedtler Norris Maxi are extra big 8.5mm diameter pencils with thick 4mm diameter colour strips. Formative, 12 sided wood cased pencils specifically for younger children.