Flex is a comfortable chair, with a back that slides open when the chair is opened. This is especially true for this model, and gives a higher back than what would otherwise be possible in limited space in a telescope stand.

Can only be mounted on steps, on fixed or telescopic stand.
The back and seat can be upholstered with fabric, or with wooden panels on the back and under the seat. These can also be perforated for acoustics.
Armrest in wood or upholstered.
Can be delivered with fully automatic telescope stand.