Back Friend chair support (Natland LA9)

I can vouch for the effectiveness of the Back Friend. It's transportable and turns any chair into one with orthopaedic support. It's well used, rather grubby but very comfortable. You can read more about them at https://www.medesign.co.uk/MEDesign-Backfriend?srsltid=AfmBOooaOi8lOggRy0aV...