Here is a Karetao, beautifully carved by Riki Manuel for my production 'YES'. You might like to look at the other websites too
The figure is 460 mm tall. The photo does not show the lower extension where you hold on to it. By moving the hand piece and relaxing and tightening the string holding the arms you get a lot of movement. Put this into an environment with a natural light source like a small fire in a whare, they must have had an amazing powerful impact. Very few old ones are in collections in New Zealand and overseas.