The Tele Vue Air Chair offers a comfortable viewing experience while using your telescope. Its soft, rotating seat enhances prolonged observations, allowing you to notice finer details. The chair's height is adjustable between 21" and 28" with a simple lever, making it compatible with all Tele Vue scopes and mounts. It ensures that tripods are used at their most stable heights. The chair features a pneumatic piston for easy height adjustment, and its design includes foldable legs and a detachable seat for convenient transport. However, it's not advisable to use the chair in temperatures below -20°F/-29°C.