Hydraulic piano bench

We have recently had a chance to get a hydraulic piano bench. It is very useful because it is much faster and easier to adjust the height of the seat. Also, this particular bench has another important advantage - it has 2 separate seating parts, so it is very useful for teacher with a pupil - they can adjust the heights separately.
Watch the video to see how it works!

Here is also a list of 'single' benches: 

Hydraulic Piano Bench