Adjustable neck pillow to import Germany

In this case we are interested in your adjustable neck pillow for car seat. We are looking for a headrest that is in height adjustable. So that it cannot slip up and down.

The headrest or It´s memory foam volume should be approximately 2cm smaller or not too big so that the head is not pushed forward by the volume of the headrest. It should be usable for small people 1.6m.