A little princess and a little prince, gold crowns and all, asleep side by side in the box they arrive in. The sleeve slides out of the printed lid and becomes their bed: a soft blanket, one small pillow, and just enough room for two. The lid carries their own royal portrait, so the box is part of the toy rather than packaging to throw away.

She wears a ribbed cream top printed with navy dots, over a skirt of overlapping cream fabric petals with a ruffled waist. He wears a soft dotted cream vest, fastened with a gold clasp, over a plain pale sage shirt. Both are Little sister and Little brother size in Maileg's family sizing, 4.33 in tall, so they share the clothes and the furniture made for every other Little mouse. The bodies are fabric, filled with recycled polyester and PE pellets, which is what gives a Maileg mouse its floppy, weighted feel in a small hand. Other items pictured are sold separately.

Its Maileg name is Royal twin mice, Little sister and brother in matchbox, item number 17-5100-00, made in China. Maileg marks the pair 3 and up. Not a toy for a child under 3.

The rest of the Little mice keep their own boxes: Little Sister Mouse in Matchbox and Little Brother Mouse in Matchbox. Maileg sizes its mice by family role rather than by measurement, and says each one is handmade so heights vary a little, which makes the size name the thing that decides the fit.