The Smiley Attachable Pen Case is for those who don’t want carry a heavy chubby pencil case but would love to bring 3-4 pens only. Just strap this compact and brilliant pen case onto your hardcover notebook or planner and you are all set! No need to scrabble your bag to get your pencil cases any more. Simply grab your notebook and you will get the your favorite pens attached to the notebook easily! This new writing experience will surely make you smile!