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Inflatable Lumbar Support
This allows for variation in the support of the lumbar area. Inflate to desires firmness.
To inflate the lumbar area, place fingers underneath the lever and lift repeatedly until you feel the correct support. To deflate the lumbar, press down on the lever to release the air.
Air bulb models: turn the knob (silver valve) clockwise until tight and pump the bulb until you feel the correct support. To release air, turn the valve counterclockwise, and the air will automatically release, Retighten the valve at the correct firmness.
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