The dolls are generally made of natural fibres— such as wool, cotton, or linen — from their stuffing to their hair to their clothing. The doll makers use techniques drawing on traditional European doll-making. The doll's appearance is intentionally simple in order to allow the child playing with it to develop the imagination and creative play. For instance, it has either no facial features, or a simple neutral expression. The legs and arms are soft and if flexible allow natural postures. They are ideally entirely natural.
Dolls vary in the form best suited to the stage of development of the child; from a simple sack or pillow doll for a baby, a knotted or handkerchief style for a teething child, a simple doll with bulky limbs and either short hair or a hat for a toddler. For an older, more independent child who can change clothing and dress hair, 'formed' limbed dolls with the ability to sit are introduced with changeable clothing and often longer hair.