The rolls were delivered as described, so I should really give 5 stars, but there is for me personally the hook: clear, I have self-braking rolls ordered, because I thought it would be more practical on hard ground, when the chair is not it is rolling at the slightest touch of self. However, the deliberate shifting of the chair in unloaded condition is thus impossible and has the consequence that he scrubs with unpleasant scratching noise on stationary rolls across the floor, worse than on normal roles. On top of that obviously my low body weight when it sit is not always enough, all the roles to move smoothly and I have now bought accordingly unnerved by the continuous rubbing on the floor the hard floor casters of Amstyle that are softer even from material her a lot. And for kilometers does not roll the chair with this unchecked roles now ;-)
