Hard floor casters are super

I needed for my office chair hard floor casters. Looking on the internet, the difficulty did on that my old wheels had a pen with 10 mm diameter and 30 mm length. Find rolls with a pin diameter of 10 mm, was simple, but there is no 30mm long pins. After careful consideration, I have decided, it just with the roles of trying to have a 20 mm long pin. And - it fits!
Important experience: the spindle length so has a minor role.

Note for Note of another buyer, the pins to swap the old rolls with the pins of the new roles:
I tried to pull the pins in my old rolls out (after all, I wanted to throw away these roles yes). That was not in my roles by force. Obviously, there are roles where this method fails.
But no matter - I am completely at peace.

The new roles are silent, a braking effect is there, but does not interfere when it is seated and my floor is spared.
These roles and these retailers can I highly recommend.