noun
pencil case; pen case; brush case
A container for writing or painting tools, such as pencils, pens, or calligraphy brushes. The term is neutral and commonly used in everyday contexts.
新しい筆入れを買った。
I bought a new pencil case.
筆入れに鉛筆と消しゴムを入れている。
I keep pencils and an eraser in my pencil case.