Pencil case
A pencil case or pencil box is a container used to carry pencils. A pencil case can also contain a variety of other stationery such as a pencil sharpener, pens, erasers, a stapler, and a calculator.
Pencil cases are usually made of either hard or soft plastic. Soft versions are typically fastened with a zipper. Decorated versions are popular with schoolchildren, often with licensed character artwork. Guidelines during examinations for students require for pencil cases to be transparent, to prevent the hiding of notes within for the purposes of cheating.
Pencil boxes are usually made of hard plastic or wood, while the term pencil case is broader and often refers to a container made of soft material such as fabric, leather or soft plastic.
See also
Look up pencil case or pencil box in Wiktionary, the free dictionary.