Frame totally made of steel; provided with 5 spokes base made of thermo-shaped ABS (57 cm diameter), with pirouetting wheels (3 cm diameter) autoblocking and gummed.
The height can be regulated by a gas spring (13 cm travel).
The seat (40 cm diameter) and the shoulder-rest (can be reclined in depth and turned for 180º) are covered with Peltex (white or black).
The pole which support the shoulder-rest is 20 cm long.