Generally, nylon carpet casters are standard, but soft wheel casters are available for hard surfaces such as linoleum.
Rubber locking casters are useful on stools to prevent tipping.
The seat pan is the component of the chair that supports the majority of the user s weight. Tilt adjustments are preferred to allow a forward working posture to be attained or a reclined posture. A seat pan with a sliding mechanism is also a beneficial feature. This allows small and tall users to adjust the distance from the back rest. Backrest Adequate lumbar support is the most crucial element of a backrest.