Rulering / Rulering

Rulering is a ring-shaped measuring tool, which can help mothers and children to easily measure the height. No ruler measurement creates a new way of measuring. It simulates the movement of mother stroking the child's head, the ring can automatic detect the ground as a measurement starting point, when the object contacts the ring sensing area, then regarding it as the measurement endpoint. The ring screen can display the reading.Children can measure their height by themselves and experience the joy of growth.