How do you adjust the height on these stools?

Adjustable-height stools typically have a hydraulic lift system operated by a lever directly beneath the seat. The lever opens a valve that allows the air to go up or down, lifting or dropping the seat. Alternatively, some seats have a simple screw action that lets you adjust the height by rotating the seat.

Which stools are suitable for occasional dinner parties in an apartment kitchen with limited space?

Lightweight metal stackable stools are easy to move into a corner or cupboard when not needed. If you prefer something with arm rests and a back, directors' chairs fold up for easy storage as well.

Are any of these stools suitable for use in an outdoor bar area?

Some of the metal and plastic stools are suitable for use outdoors. Check for terms like 'all-weather use' in the product description, features, or specs.

Yellow Counter & Bar Stools