Paper, cardboard and goods made from these materials, not included in other classes; stationery including books for learning to write, writing inks, and ink wells; erasers; writing, drawing, painting and modelling requisites in particular fountain pens, ball pens, pencils, rollers, fineliners, fibre-tipped pens, wax crayons; ink eradicators; correcting ribbons for covering and correction of writing and typing errors as well as cassettes and devices for unrolling and applying such correction materials; writing cases and pencil cases; artists' materials; plastic materials for packaging not included in other classes; instructional and teaching material (except apparatus)