TeleVue Air Chair Adjustable Pneumatic Observer's Chair.  Comfortable, and easily transportable, with a 21" to 28" height adjustment. Works on all surfaces.

• *Padded seat
  *folding legs
  *removable seat
  *rubber feet
  *adjustable from 21" to 28" with one hand
  *Pneumatic piston adjustment

With your telescope standing, we want to get you sitting! You'll spend more time lingering at the eyepiece when comfortably seated on Air-Chair's soft and rotating seat. More eyepiece time is more opportunity to spot subtle details. Ideal height range with a lever flick, for all Tele Vue scope and mount combinations. Allows tripods to be used at their most stable heights.Seat Height 21" to 28".  Lift: Pneumatic piston.  Legs fold, seat removes, for easy transport.  Not recommended for use below 40°F/4C