kneeling/backless office chair | Chairs & Recliners | City of Toronto | Kijiji
Ergonomic Kneeling Chair, Adjustable Stool for Home and Office - Improve Your Posture with an Angled Seat - Thick Comfortable Moulded Foam Cushions - Brake Casters : Amazon.ca: Home
Amazing benefits of a backless posture chair | CoreChair