Address     Press material     Press reviews     Summary     High res pics
Stool features
Thickly upholstered and ergonomically designed seat with genuine leather cover.
Vertically adjustable from 60-92.5 cm / 23.7"-36.5" with simple squeeze-and-release locking system.
Adjustable seat angle from 0° (horizontal position) to 6° tilted forwards, with fast pull-and-release locking mechanism.
No rattling or squeaking - special bushes between all moving parts.
Seat clicks into stool section by a simple locking mechanism.
Foot rest.
Can be folded to take up a minimum of space.
Weighs only 3.6 kg / 7.9 lbs.
Smooth finish - no sharp edges.
Stylish on stage.

Trolley features
Adjustable to all sizes of double basses.
With the bass attached it can stand on the ground without support.
The bass rests softly on the stool seat and against the thick foam pads on the side of the trolley.
Optimal shock absorbtion from the large pneumatic tyres.
Easy to roll - the weight of the bass balances on the trolley.
Rolls easily over steps and curbs.
The air pressure in the tyres can be adjusted with the supplied pump.
Only leather and foam touches the bass, allowing the bass to be transported without its cover.

Technical data
Stool height Adjustable from 60 cm / 23.7" to 92.5 cm / 36.5" in steps of 2.5 cm / 1" (14 steps).
Seat angle 4 adjustable positions: 0° (horizontal), 2°, 4° and 6° forward.
Seat 7 cm / 2.8" thick layer of foam covered with genuine thick leather. 34 cm / 13.4" wide and 21 cm / 8.3" deep.
Materials Frame constructed using aluminium, seat covered with genuine leather, all other parts in stainless steel, rubber and POM (plastic bushes).
Dimensions Width of trolley (wheel section): 46.5 cm / 18.3".
Width of trolley (frame): 28 cm / 11".
Total height as trolley, min. 69 cm / 27", max 101.5 cm / 39.9".
Wheel diameter: 30 cm / 11.8".
Weight Stool: 3.6 kg / 7.9 lbs.
Wheel part: 3.0 kg / 6.6 lbs.
Total: 6.6 kg / 14.5 lbs.

6 good reasons to have a Double Trolley...
No more pains in shoulders and back from carrying both the stool and the double bass.
Always have your own stool with you!
The safest transportation device available to roll your bass.
Invented, developed and tested by professional bass players.
Scandinavian design.
Top quality materials and craftsmanship.


I got the Double Trolley and it works very well! It is built more firmly and so easier to move the instrument and to sit on than I thought. Among all, I'm surprised at that it can make sharp turns so I can move the instrument in narrow space like a corridor in my home. All of my colleagues admired it, and some of them said they would like to buy it.

Today, when I took this picture, there was a slight strong earthquake, but my instrument which was standing with the trolley didn't fall down!

Yosuke Yamazoe

More reviews..
1999-2016 Double Design of Scandinavia AB, Sweden, Tel +46 707 18 16 20,