Relieves the spine, encourages a correct sitting position and strengthens the back muscles

Anti-crack quality: particularly high safety against sudden bursting

Inflates quickly with a standard foot or standing pump (not included)

Load capacity: max. 120 kg

Ball with expanders: with 2 individually adjustable and removable elastic fitness bands with grips for sports and balance exercises

Ball with nubs: with protruding nubs for increased stimulus perception and a light massage effect