The sisters' dress-up mask is made of polyester and polypropylene. It measures 17 cm and fastens with a hook and loop fastener.

Anna and Clara are preparing for a dress-up party the nephew is holding at their house. He has invited some friends to join him on a fantastical adventure, so the sisters make sure there are plenty of costumes to choose from. "Do not forget the masks, dear Clara," Anna says, and she neatly displays costume pieces on hangers.