Kneeling/Posture Chair

My wife finds sitting for long periods on our computer chair uncomfortable, and she wondered if one of those C-shaped or X-shaped posture/kneeling chairs would be better.

kneeling chair design plan - Поиск в Google

Here we offer you two plans that can help you make simple wooden or metal kneeling chairs. Just like with the commercial chairs, these ones can also be adjusted to find your optimal seating position.