Televue Air Chair - like new -- less than one month old. $135 plus shipping. I accept money orders or Paypal. I'll need to ship by June 28 before I go on vacation.
Using a chair increases your ability to hold the image steady. Some people say this is like gaining a couple of inches of aperture in your scope. I wouldn't go that far. But it makes aiming the scope, and viewing through the eyepiece very comfortable. This Televue chair has an air hydraulic mechanism that let's you easily adjust the height of the chair as you're seated. So you can adjust the height very accurate to your needs.