The OK chair consists of a tubular marine grade stainless steel frame which can be used in two positions. The ‘portrait’ orientation supports women in a standing or ‘praying’ position, and the ‘landscape’ orientation supports them in an all-fours position or sitting.
Three cushions can be snapped onto the frame. The smallest always supports the woman’s head and arms. The middle cushion is for kneeling on in the ‘prayer’ position or to provide a back for the birthing chair; and the largest, the seat, is shaped to allow for the birth.
Tested by FIRA to the following British Standards