Mistake-proof stem selection - set includes five wheels and 10 stem fasteners (5 each: 3/8"D x 1"L and 7/16"D x 7/8"L) for all metal-base chairs
Full hood design - 1-1/2"D oversizedneck, weight rated 100 lb./wheel
Determine correct stem diameter by removing a caster from the leg of your chair base. Match diameter of existing stem and insert into caster body- Discard the other five fasteners
Comments about Global Lumbar Pump Fabric Managers Mid-Back Chair, Gray:
I like this chair since I sit alot working on the computer and since having this chair here I have no issues with my back or tailbone bothering me cause my other chair was like sitting on a board the cushion on this is superior and there is adjustment allow the chair fit the contour of your back. when they say its extended comfort there right for setting long periods, which is a plus if you sit alot.
Comments about Global Lumbar Pump Fabric Managers Mid-Back Chair, Gray:
never had problem with my back.
after using this for 1 yr, i started having chronic back pains (both upper and lower). AWFUL padding, awful posture, awful everything. pump is a joke, it doesn't pump up more than 2mm.
head rest is way too far in the back that it is extremely useless... you have to tilt your head all the way back to rest on it....
awkard back padding (on 2 sides??!!) that makes your shoulder squirm and make your whole body squirm...
Comments about Global Lumbar Pump Fabric Managers Mid-Back Chair, Gray:
This chair is a definite improvement over the three previous chairs I had in my office. I have a chronic back pain. After I sit in this chair, my pain is substantially less. The chair is not at all causing the pain.